RSC - Polym. Chem. latest articles

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Secondary structures of synthetic polypeptide polymers

Tue, 03/27/2018 - 10:41

Polym. Chem., 2018, 9,1517-1529
DOI: 10.1039/C7PY01725A, Review ArticleColin Bonduelle
Synthetic peptide-based polymers can fold into different secondary structures in the same way as do proteins. This review article presents how tuning the polypeptide secondary structure could be a key step to modulate various properties in advanced polymeric materials (size, rigidity, self-assembly, etc.).
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Categories: Polymer Science News

A photocatalyst immobilized on fibrous and porous monolithic cellulose for heterogeneous catalysis of controlled radical polymerization

Tue, 03/27/2018 - 10:41

Polym. Chem., 2018, 9,1666-1673
DOI: 10.1039/C7PY01690E, PaperYingying Chu, Zixuan Huang, Kang Liang, Jia Guo, Cyrille Boyer, Jiangtao Xu
Fibrous and porous monolithic cellulose was employed to immobilize a photocatalyst for heterogeneously catalysing controlled radical polymerization, which provides superior catalyst recyclability.
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Categories: Polymer Science News

Photolabile protecting groups: a strategy for making primary amine polymers by RAFT

Tue, 03/27/2018 - 10:41

Polym. Chem., 2018, 9,1557-1561
DOI: 10.1039/C7PY01398A, CommunicationNethmi De Alwis Watuthanthrige, Pierce N. Kurek, Dominik Konkolewicz
Photolabile amine protecting groups are combined with RAFT polymerization to create well-defined amine containing polymers, which is typically a challenge for RAFT polymerization.
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Categories: Polymer Science News

Correction: The effects of polymer topology and chain length on the antimicrobial activity and hemocompatibility of amphiphilic ternary copolymers

Tue, 03/27/2018 - 10:41
Polym. Chem., 2018, 9,1745-1745
DOI: 10.1039/C7PY90140B, Correction Open Access &nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Rashin Namivandi-Zangeneh, Rebecca J. Kwan, Thuy-Khanh Nguyen, Jonathan Yeow, Frances L. Byrne, Stefan H. Oehlers, Edgar H. H. Wong, Cyrille Boyer
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Categories: Polymer Science News

Pure hydrophilic block copolymer vesicles with redox- and pH-cleavable crosslinks

Tue, 03/27/2018 - 10:41

Polym. Chem., 2018, 9,1626-1637
DOI: 10.1039/C7PY01214D, Paper Open Access &nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Jochen Willersinn, Bernhard V. K. J. Schmidt
The formation and stimuli cleavable crosslinking of completely water drained double hydrophilic block copolymer vesicles is presented.
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Categories: Polymer Science News

The effects of polymer topology and chain length on the antimicrobial activity and hemocompatibility of amphiphilic ternary copolymers

Tue, 03/27/2018 - 10:41

Polym. Chem., 2018, 9,1735-1744
DOI: 10.1039/C7PY01069A, PaperRashin Namivandi-Zangeneh, Rebecca J. Kwan, Thuy-Khanh Nguyen, Jonathan Yeow, Frances L. Byrne, Stefan H. Oehlers, Edgar H. H. Wong, Cyrille Boyer
Hyperbranched random copolymers that consist of ethylhexyl hydrophobic groups have the best selectivity compared to linear random and block copolymers.
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Categories: Polymer Science News

High-definition polyphosphoesters: between nucleic acids and plastics

Tue, 03/27/2018 - 09:41
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00251G, Review ArticleNadeema Appukutti, Christopher Serpell
Polyphosphoesters are common to both genetics and cutting-edge polymer science. This review seeks to reframe current conceptions of the boundaries of nucleic acid and polymer chemistry, showing that vital 'stepping...
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Categories: Polymer Science News

Maximizing the symbiosis of static and dynamic bonds in self-healing boronic ester networks

Tue, 03/27/2018 - 04:38

Polym. Chem., 2018, Advance Article
DOI: 10.1039/C8PY00123E, PaperJessica J. Cash, Tomohiro Kubo, Daniel J. Dobbins, Brent S. Sumerlin
Networks that contain boronic ester crosslinks undergo dynamic bond exchange that enables self-healing behavior and reprocessing.
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Categories: Polymer Science News

Efficient polymerization and post-modification of N-substituted eight-membered cyclic carbonates containing allyl groups

Tue, 03/27/2018 - 03:38
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00231B, PaperAlexander Yuen, amaury bossion, Antonio Veloso, David Mecerreyes, James Hedrick, Andrew P Dove, Haritz Sardon
Aliphatic polycarbonates are promising materials in the biomedical field due to their low toxicity, biocompatibility, and biodegradability. A popular approach in obtaining these materials is through the organocatalyzed ring-opening polymerization...
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Categories: Polymer Science News

Functional Chalcogenide Hybrid Inorganic/Organic Polymers (CHIPs) via Inverse Vulcanization of Elemental Sulfur and Vinylanilines

Mon, 03/26/2018 - 22:32
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00270C, PaperYueyan Zhang, Tristan Kleine, Kyle Carothers, David Phan, Richard S. Glass, Michael Mackay, Kookheon Char, Jeff Pyun
We report on the synthesis of a new class of functional chalcogenide hybrid inorganic/organic polymers (CHIPs) bearing free aryl amine groups that are amenable to post-polymerization modifications. These functional CHIPs...
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Categories: Polymer Science News

Losing supramolecular orientational memory via self-organization of a misfolded secondary structure

Mon, 03/26/2018 - 05:18
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00187A, PaperDipankar Sahoo, Mihai Peterca, Emad Aqad, Benjamin Edward Partridge, Michael Klein, Virgil Percec
Supramolecular orientational memory (SOM) provides a route to otherwise inaccessible nanoscale architectures for certain molecules. In these privileged cases, columnar domains organized from self-assembling dendrons undergo reorientation during heating to,...
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Categories: Polymer Science News

Stable copper acetylacetonate-based oxidizing agents in redox (NIR photoactivated) polymerization: an opportunity for one pot grafting from approach and example on a 3D printed object

Mon, 03/26/2018 - 03:16
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00341F, PaperJacques Lalevee, Patxi Garra, Frederic Dumur, Didier Gigmes, Celine Dietlin, Fabrice Morlet-Savary, Bernadette Graff, Malek Nechab, Jean Pierre Fouassier
The use of new stable copper acetylacetonates in combination with specific bidentate ligands (e.g 2dppba) is proposed for redox free radical polymerization (FRP) under mild conditions (under air, room temperature)....
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Categories: Polymer Science News

Radiant star nanoparticle prodrugs for the treatment of intracellular alveolar infections

Mon, 03/26/2018 - 01:13
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00202A, PaperDebobrato Das, Selvi Srinivasan, Fiona Brown, Fang Su, Anika Burrell, Justin Kollman, Almar Postma, Daniel Ratner, Patrick Stayton, Anthony J Convertine
Radiant star nanoparticle (RSN) prodrugs were synthesized in a two-step process by first homopolymerizing RAFT transmers followed by copolymerization from the hyperbranched polymer core. Two trithiocarbonate-based transmers were synthesized containing...
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Categories: Polymer Science News

Metallocene Influence on Poly(Cyclosilane) Structure and Properties

Mon, 03/26/2018 - 00:13
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00312B, CommunicationCarlton P. Folster, Rebekka S Klausen
Poly(cyclosilane)s, conjugated polymers inspired by crystalline silicon, are synthesized by dehydrocoupling polymerization promoted by group 4 metallocenes. Changes in metallocene structure and reactivity are correlated with changes in poly(cyclosilane) chain...
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Categories: Polymer Science News

Dynamically Crosslinked Carbon Dots/Biopolymer Hydrogels Exhibiting Fluorescence and Multi-stimuli Logic-gate Response

Sun, 03/25/2018 - 22:10
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00165K, PaperChun Shen, Yue Zhao, Hou Liu, Yingnan Jiang, Na Li, Shaowei Lan, Huizheng Bao, Bai Yang, Quan Lin
Intelligent soft materials have been intensively investigated during the past decades. Herein, nanocomposite hydrogels are constructed for naked-eye detection of multiple external stimuli. The nanocomposite hydrogels were prepared by the...
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Categories: Polymer Science News

Linear Dendronized Polyols as a Multifunctional Platform for a Versatile and Efficient Fluorophore Design

Fri, 03/23/2018 - 11:31
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00193F, PaperYing Li, Katharina Huth, Edzna Garcia, Benjamin J. Pedretti, Yugang Bai, Gretchen Vincil, Rainer Haag, Steven C. Zimmerman
Fluorescent linear dendronized polyols (LDPs) were prepared in two steps involving a ring-opening metathesis polymerization (ROMP) followed by acid-catalyzed deprotection. The resulting water-soluble fluorophores are compact in size (< 6...
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Categories: Polymer Science News

Alternating Ring-opening Copolymerization of Phthalic Anhydride with Epoxides Catalysed by Salophen Chromium(III) Complexes. An effect of substituents in salophen ligands

Fri, 03/23/2018 - 04:28
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00048D, PaperKarol Bester, Wiktor Bukowski, Agnieszka Bukowska, Krzysztof Hus, Bogdan Mysliwiec, Danuta Tomczyk, Pawel Urbaniak
An effect of ligand structure on the catalytic activity of salophen chromium(III) complexes in the ring-opening copolymerization of phthalic anhydride with a series of epoxides was studied. The catalytic activity...
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Categories: Polymer Science News

Diels-Alder Dynamic Crosslinked Polyurethane/polydopamine Composites with NIR Triggered Self-healing Function

Fri, 03/23/2018 - 04:28
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00162F, PaperLi Yang, Xili Lu, Zhanhua Wang, Hesheng Xia
A new kind of ultrafast near-infrared light responsive shape memory assisted self-healing polymer composites were prepared by introducing polydopamine particles (PDAPs) into polyurethane containing Diels-Alder bonds. The mechanical properties of...
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Categories: Polymer Science News

Combining benzoxazine and ketene chemistries for self-healing of high performance thermoset surfaces

Fri, 03/23/2018 - 02:27
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00293B, PaperMustafa Arslan, Amir Motallebzadeh, Baris Kiskan, A. Levent Demirel, Volkan Kumbaraci, Yusuf Yagci
A novel strategy for the synthesis and characterization of self-healable polybenzoxazine based high performance thermoset surfaces is presented. The method involves the preparation of polymeric benzoxazine precursors from simple chemicals...
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Categories: Polymer Science News

Functionalization of Polyfluorene-Wrapped Carbon Nanotubes via Copper-Mediated Azide-Alkyne Cycloaddition

Fri, 03/23/2018 - 00:27
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00377G, PaperDarryl Fong, Grace Andrews, Alex Adronov
Developing methodologies that efficiently functionalize carbon nanotubes without damaging nanotube optoelectronic properties is an ongoing challenge. Here, we examine the scope of Copper-Mediated Azide-Alkyne Cycloaddition (CuAAC) for coupling an azide-containing...
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Categories: Polymer Science News

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