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A covalently crosslinked silk fibroin hydrogel using enzymatic oxidation and chemoenzymatically synthesized copolypeptide crosslinkers consisting of a GPG tripeptide motif and tyrosine: control of gelation and resilience

Polym. Chem., 2020, Advance Article
DOI: 10.1039/D0PY00187B, Paper
Hiromitsu Sogawa, Takuya Katashima, Keiji Numata
A covalently crosslinked silk fibroin hydrogel was successfully formed via an enzymatic crosslinking reaction using copolypeptides, which consist of a glycine–proline–glycine tripeptide motif and tyrosine, as linker molecules.
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Visible light-mediated ring-opening polymerization of lactones based on the excited state acidity of ESPT molecules

Polym. Chem., 2020, Advance Article
DOI: 10.1039/D0PY00369G, Paper
Xun Zhang, Siping Hu, Qiang Ma, Saihu Liao
A visible light-regulated ring-opening polymerization of lactones has been developed based on the excited state acidity of ESPT molecules.
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Synthesis of star-shaped polyzwitterions with adjustable UCST and fast responsiveness by a facile RAFT polymerization

Polym. Chem., 2020, Advance Article
DOI: 10.1039/D0PY00318B, Paper
Zhi Li, Hao Li, Zhonghe Sun, Botao Hao, Tung-Chun Lee, Anchao Feng, Liqun Zhang, San H. Thang
We describe crosslinking of polyzwitterions for the formation of novel star-shaped polymers with low polydispersities and dual-responsiveness using RAFT polymerization.
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Poly(alanine-nylon-alanine) as a bioplastic: chemoenzymatic synthesis, thermal properties and biological degradation effects

Polym. Chem., 2020, Advance Article
DOI: 10.1039/D0PY00137F, Paper
Open Access
Prashant G. Gudeangadi, Kei Uchida, Ayaka Tateishi, Kayo Terada, Hiroyasu Masunaga, Kousuke Tsuchiya, Hitoshi Miyakawa, Keiji Numata
Poly(amino acids) such as polypeptides and proteins are attractive biomass-based polymers that potentially contribute to circular economy for plastic.
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Enhanced thermomechanical property of a self-healing polymer via self-assembly of a reversibly cross-linkable block copolymer

Polym. Chem., 2020, Advance Article
DOI: 10.1039/D0PY00310G, Paper
Hyang Moo Lee, Suguna Perumal, Gi Young Kim, Jin Chul Kim, Young-Ryul Kim, Minsoo P. Kim, Hyunhyup Ko, Yecheol Rho, In Woo Cheong
Introduction of a self-healable block copolymer increases the mechanical property whilst maintaining self-healing efficiency.
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Vesicular assemblies of thermoresponsive amphiphilic polypeptide copolymers for guest encapsulation and release

Polym. Chem., 2020, 11,2889-2903
DOI: 10.1039/D0PY00135J, Paper
Mahammad Anas, Somdeb Jana, Tarun K. Mandal
Thermoresponsive amphiphilic polypeptide copolymers are synthesized via different polymerization techniques for their self-assembly into vesicular aggregates for guest encapsulation and release.
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Synthesis of a side-chain hole transporting polymer through Mitsunobu post-functionalization for efficient inverted perovskite solar cells

Polym. Chem., 2020, 11,2883-2888
DOI: 10.1039/D0PY00134A, Paper
Liuyuan Lan, Xiang Deng, Jie Zhang, Jingdong Luo, Alex K.-Y. Jen
Mitsunobu post-functionalization was utilized to construct a new efficient dopant-free side-chain hole transporting polymer for inverted perovskite solar cells, exhibiting a power conversion efficiency of 17.75% and a high fill factor over 81%.
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Well-controlled polymerization of tri-vinyl dynamic covalent boroxine monomer: one dynamic covalent boroxine moiety toward a tunable penta-responsive polymer

Polym. Chem., 2020, 11,2914-2922
DOI: 10.1039/D0PY00401D, Paper
Shun-Shun Li, Xin-Hu Lv, Xiao-Li Sun, Wen-Ming Wan, Hongli Bao
Attributed to dynamic characteristics of dynamic covalent boroxine, well-controlled polymerization of tri-vinyl monomer and molecular design of penta-responsive polymer with only one functional moiety are achieved.
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A high performance phenyl-free LED photoinitiator for cationic or hybrid photopolymerization and its application in LED cationic 3D printing

Polym. Chem., 2020, 11,2855-2863
DOI: 10.1039/D0PY00142B, Paper
Liqun Tang, Jun Nie, Xiaoqun Zhu
In this work, a high performance LED photoinitiator, 1,3-bis(1-methyl-1H-pyrrol-2-yl)prop-2-en-1-one (BMO), without a benzene ring was synthesized through a one-step aldehyde–ketone condensation reaction.
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Tuning polymer properties of non-covalent crosslinked PDMS by varying supramolecular interaction strength

Polym. Chem., 2020, 11,2847-2854
DOI: 10.1039/D0PY00139B, Paper
Open Access
Brigitte A. G. Lamers, Marcin L. Ślęczkowski, Fabian Wouters, Tom A. P. Engels, E. W. Meijer, Anja R. A. Palmans
Linear polydimethylsiloxane (PDMS) is crosslinked by supramolecular grafts to obtain materials with strikingly different mechanical properties by tuning the strength of the non-covalent interactions.
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Influence of surface charge on the formulation of elongated PEG-b-PDLLA nanoparticles

Polym. Chem., 2020, 11,2775-2780
DOI: 10.1039/D0PY00280A, Communication
Open Access
Roxane Ridolfo, David S. Williams, Jan C. M. van Hest
Amphiphilic PEG-PDLLA copolymers undergo assembly into polymersomes and can be transformed into tubular shapes using dialysis. By fine-tuning the shape change conditions also amine- and carboxylic acid modified polymersomes can now be effectively turned into tubes.
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Correction: A facile PEG/thiol-functionalized nanographene oxide carrier with an appropriate glutathione-responsive switch

Polym. Chem., 2020, 11,2923-2923
DOI: 10.1039/D0PY90048F, Correction
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Bingjie Hao, Wei Li, Sen Zhang, Ying Zhu, Yongjun Li, Aishun Ding, Xiaoyu Huang
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Biosignal-responsive polymer nanorods that specifically recognize hydrogen polysulfide (H2Sn) from reactive sulfur species

Polym. Chem., 2020, 11,2781-2785
DOI: 10.1039/D0PY00360C, Communication
Xi Liu, Wei Sang, Kunbing Ouyang, Qiang Yan
We report a new block copolymer bearing p-fluoronitrobenzoate (FNB) pendants that is capable of responding to the H2Sn biosignal in an extraordinarily selective and sensitive manner.
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Incorporating trifunctional 1,6-heptadiyne moiety into polyacetylene ionomer for improving its physical and conductive properties

Polym. Chem., 2020, Advance Article
DOI: 10.1039/D0PY00109K, Paper
Hongfei Li, Hengchen Zhang, Xiaojuan Liao, Ruyi Sun, Meiran Xie
A trifunctional diyne comonomer can regulate the structure and optimize the physical state of polyacetylene ionomers, which exhibit a high ionic conductivity of 2.6 × 10−5–1.0 × 10−3 S cm−1 at 30 °C.
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Alternating ring-opening copolymerization of epoxides with saturated and unsaturated cyclic anhydrides: reduced viscosity poly(propylene fumarate) oligomers for use in cDLP 3D printing

Polym. Chem., 2020, Advance Article
DOI: 10.1039/D0PY00453G, Paper
Yongjun Shin, Matthew L. Becker
A ring-opening copolymerization of propylene oxide with saturated and unsaturated anhydrides using Mg(BHT)2(THF)2 catalyst followed by an isomerization yields poly(propylene fumarate) (PPF) oligomers with improved properties for 3D printing.
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Tacticity dependence of single chain polymer folding

Polym. Chem., 2020, Advance Article
DOI: 10.1039/D0PY00133C, Paper
Open Access
Denis Danilov, Elaheh Sedghamiz, Heike Fliegl, Hendrik Frisch, Christopher Barner-Kowollik, Wolfgang Wenzel
Precision polymerization techniques offer the exciting opportunity to manufacture single-chain nanoparticles (SCNPs) with intramolecular crosslinks placed in specific positions along the polymer chain.
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Rapid production of block copolymer nano-objects via continuous-flow ultrafast RAFT dispersion polymerisation

Polym. Chem., 2020, Advance Article
DOI: 10.1039/D0PY00276C, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Sam Parkinson, Stephen T. Knox, Richard A. Bourne, Nicholas J. Warren
Continuous-flow reactors are exploited for conducting ultrafast RAFT dispersion polymerisation for the preparation of diblock copolymer nanoparticles.
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Comprehensive theoretical and experimental study of near infrared absorbing copolymers based on dithienosilole

Polym. Chem., 2020, Accepted Manuscript
DOI: 10.1039/D0PY00330A, Paper
Katarzyna Brymora, Wissem Khelifi, Sylvie Blanc, Lionel Hirsch, Antoine Bousquet, Christine Lartigau-Dagron, Frederic Castet
In recent contributions [Eur. Polym. J. 2013, 49, 4176; Macromolecules 2019, 52, 13, 4820], we reported a series of low band gap copolymers with the objective of shifting the absorption...
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Correction: Flow-facilitated ring opening metathesis polymerization (ROMP) and post-polymerization modification reactions

Polym. Chem., 2020, Advance Article
DOI: 10.1039/D0PY90065F, Correction
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Selesha I. Subnaik, Christopher E. Hobbs
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Room Temperature Synthesis of Block Copolymer Nano-Objects with Different Morphologies via Ultrasound Initiated RAFT Polymerization-Induced Self-Assembly (Sono-RAFT-PISA)

Polym. Chem., 2020, Accepted Manuscript
DOI: 10.1039/D0PY00461H, Paper
Jing Wan, Bo Fan, Yiyi Liu, Tina Hsia, Kaiyuan Qin, Tanja Junkers, Boon M. Teo, San Thang
Polymerization-induced self-assembly (PISA), which allows scalable synthesis of nano-objects, has drawn significant research attention in the past decade. However, the initiation methods in most of the current reported PISA are...
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Optimizing the Thermoelectric Performance of Conjugated Polymer Backbones via Incorporating Tailored Platinum (II) Acetylides

Polym. Chem., 2020, Accepted Manuscript
DOI: 10.1039/D0PY00464B, Paper
Chunfa Liu, Xiaojun Yin, Jianwen Liu, Chunmei Gao, Lei Wang
Efforts to improve the electrical conductivity (σ) of the organic semiconductors propose the critical challenge for high performance organic thermoelectric (TE) devices. Herein, five new conjugated polymers incorporated with different...
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Photo-induced copper mediated copolymerization of activated-ester methacrylate polymers and their use as reactive precursors to prepare multi-dentate ligands for the water transfer of inorganic nanoparticles

Polym. Chem., 2020, 11,2969-2985
DOI: 10.1039/D0PY00212G, Paper
Binh T. Mai, Markus J. Barthel, Aidin Lak, Tommaso Avellini, Ana Maria Panaite, Emille M. Rodrigues, Luca Goldoni, Teresa Pellegrino
Polymers bearing activated ester groups are synthesized using photo-ATRP and used as precursors for direct synthesis of multi-phosphonic acid functionalized ligands which are able to transfer different nanoparticles with distinct cores into water.
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Synthesis of conjugated polymers via cyclopentannulation reaction: promising materials for iodine adsorption

Polym. Chem., 2020, 11,3066-3074
DOI: 10.1039/D0PY00286K, Paper
Open Access
Noorullah Baig, Suchetha Shetty, Saleh Al-Mousawi, Bassam Alameddine
A new class of conjugated polymers is prepared by means of a versatile palladium-catalyzed cyclopentannulation reaction using a series of specially designed diethynyl aryl synthons with the commercially available 9,10-dibromoanthracene DBA monomer.
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Gold nanoparticles standing on PEG/PAMAM/thiol-functionalized nanographene oxide as aqueous catalysts

Polym. Chem., 2020, Advance Article
DOI: 10.1039/D0PY00471E, Paper
Bingjie Hao, Guolin Lu, Sen Zhang, Yongjun Li, Aishun Ding, Xiaoyu Huang
Gold nanoparticles were aptly in situ grown on PEG/PAMAM/thiol-functionalized nanographene oxide platforms for aqueous catalysis.
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Construction of polyphosphoesters with the main chain of rigid backbones and stereostructures via organocatalyzed ring-opening polymerization

Polym. Chem., 2020, Advance Article
DOI: 10.1039/D0PY00262C, Paper
Yu-Jia Zheng, Guan-Wen Yang, Bo Li, Guang-Peng Wu
A highly stereoregular polyphosphoester with a rigid cyclohexylene structure in the main chain was constructed via ring-opening polymerization (ROP) in the presence of an organic catalyst system.
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Effect of the side, ethylene glycol and hydroxyl groups on the polymerization kinetics of oligo(ethylene glycol methacrylates). An experimental and modeling investigation

Polym. Chem., 2020, Accepted Manuscript
DOI: 10.1039/D0PY00498G, Paper
Mohammad Siddiqui, Dimitris Achilias, Halim Hamid Redhwi
Polymers based on methacrylates bearing short oligo(ethylene glycol) side parts constitute a modern class of stimuli-responsive, biocompatible materials exhibiting several important biological applications. A study of their polymerization kinetics considering...
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Morphological Evolution and Mechanical Properties of "Anchor Chain" Nanodomain Structure of Reactive Amphiphilic Triblock Copolymer in Epoxy Resin

Polym. Chem., 2020, Accepted Manuscript
DOI: 10.1039/D0PY00365D, Paper
Quan Zhou, Qi Liu, Yueru Yu, Yuxiao Zhuang, Yizhe Lv, Hanliang Xiao, Ning Song, Lizhong Ni
A novel epoxy-reactive amphiphilic poly(3,4-epoxy cyclohexyl methyl methacrylate)-block-poly(dimethylsiloxane)-block-poly(3,4-epoxy cyclohexylmethyl methacrylate) (PMETHB-b-PDMS-b-PMETHB) triblock polymer was synthesized via atomic transfer radical polymerization (ATRP) with a controlled molecular chain length and low dispersion,...
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Organocatalyzed ring opening polymerization of regio-isomeric lactones: reactivity and thermodynamics considerations

Polym. Chem., 2020, Accepted Manuscript
DOI: 10.1039/C9PY01777A, Paper
Marie A. F. Delgove, Ola Wróblewska, Jules Stouten, Christian A. M. R. van Slagmaat, Jurrie Noordijk, Stefaan de Wildeman, Katrien V. Bernaerts
Organocatalysts are increasingly gaining attention for the ring opening polymerization (ROP) of lactones due to numerous advantages. In this work, the goal is to expand the scope of catalysts for...
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Online Tracing of Molecular Weight Evolution during Radical Polymerization via high-resolution FlowNMR spectroscopy

Polym. Chem., 2020, Accepted Manuscript
DOI: 10.1039/D0PY00475H, Communication
Jeroen Hendrik Vrijsen, Isabel Anna Thomlinson, Martin Levere, Catherine L Lyall, Matthew G Davidson, Ulrich Hintermair, Tanja Junkers
High-resolution FlowNMR was coupled to a continuous flow reactor to monitor polymer molecular weight evolution online by diffusion ordered NMR spectroscopy. Polymers were synthesized by reversible addition fragmentation chain transfer...
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A Copper(I)-Catalyzed Azide-Alkyne Click Chemistry Approach towards Multifunctional Two-Way Shape-Memory Actuators

Polym. Chem., 2020, Accepted Manuscript
DOI: 10.1039/D0PY00217H, Paper
Zhong-Cheng Liu, Bo Zuo, Hai-Feng Lu, Meng Wang, Shuai Huang, Xu-Man Chen, Baoping Lin, Hong Yang
Nowadays, two-way shape memory polymeric materials with reversible shape-morphing capability, exhibit extraordinary application prospects in robotic, biomedical and intelligent material technologies, and have attracted extensive scientific attention. However, exploration of...
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Ring-opening copolymerization of cyclic epoxide and anhydride using a five-coordinate chromium complex with a sterically demanding amino triphenolate ligand

Polym. Chem., 2020, Accepted Manuscript
DOI: 10.1039/D0PY00155D, Paper
Ho Kyun Ryu, Dae Young Bae, Hyeongi Lim, Eunsung Lee, Kyung-sun Son
An alternating ring-opening copolymerization (ROCOP) of epoxides (cyclohexene oxide, limonene oxide) and anhydrides (phthalic anhydride, naphthalic anhydride and maleic anhydride) was performed using a chromium complex containing a sterically demanding...
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Personal Taxprep Overview

Personal Taxprep Overview

This webinar provides an overview of the Personal Taxprep interface and explains the basic operations of the program, working with taxpayer, spouse and dependant returns, navigating the tax return and entering data.

While this webinar is designed primarily for new users, it may also be helpful to users that would like a refresher on the operation of the program.

This webinar is approximately 1.5 hours in length.

Available Sessions for this Seminar:

December 09, 2014 1:00 PM - 2:30 PM EST
February 02, 2015 1:00 PM - 2:30 PM EST
March 03, 2015 1:00 PM - 2:30 PM EST





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2014 Personal Tax Update – The Year in Review

The 2014 T1 season is almost upon us, so it's time for tax return preparers to get updated again on all the current issues that may impact their clients' tax returns. This webinar will get you in position to prepare your clients' 2014 personal tax returns, and will review some of the more commonly experienced issues faced by tax preparers.

Join Erin Swint, a tax partner with Squire and Company, for a thorough overview of the key changes from the past year that will impact personal tax return filing including the 2013 Federal Budget, CRA announcements and relevant court cases. Erin will also discuss some other tax matters that are integral to personal taxation as well as administrative issues related to filing returns.

Available Sessions for this Seminar:

January 20, 2015 12:00 PM - 2:00 PM EST




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Chancery papermaking at the University of Iowa Center for the Book, 2013.

Hayden Library - TS1124.5.C43 2013




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J.C. Abbey: Ghana's puppeteer

Hayden Library - PN1982.A33 J3 2016




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The Stanford prison experiment /

Hayden Library - PN1997.2.S688 2015




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The future of energy: lateral power to the people

Hayden Library - TJ808.F888 2016




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Cancer: the emperor of all maladies

Hayden Library - RC275.C36 2015




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Cameraperson /

Hayden Library - TR895.4.C36 2017




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Hunt for the Wilderpeople /

Hayden Library - PN1997.2.H867 2016




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The prison in twelve landscapes /

Hayden Library - HV9471.P75 A1 2016




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Twin Peaks: a limited event series

Hayden Library - PN1992.77.T95 A1 2017




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Person of interest: the complete series

Hayden Library - PN1997.2.P477 A1 2016




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Solar electric power generation - photovoltaic energy systems : modeling of optical and thermal performance, electrical yield, energy balance, effect on reduction of greenhouse gas emissions / Stefan C.W. Krauter

Krauter, Stefan C. W




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Energy-efficient building systems : green strategies for operation and maintenance / Lal Jayamaha

Jayamaha, Lal




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Wind energy : proceedings of the Euromech colloquium / Joachim Peinke, Peter Schaumann and Stephan Barth (eds.)




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Thin film optical coatings for effective solar energy utilization : APCVD spectrally selective surfaces and energy control coatings / K.A. Gesheva, editor




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Wind turbine operation in electric power systems : advanced modeling / Z. Lubosny

Lubosny, Zbigniew, 1961-