Polymer Science News

Highly Stable Au Nanoparticles with Double Hydrophilic Block Copolymers Templation: Correlation between Structure and Stability

RSC - Polym. Chem. latest articles - Tue, 07/04/2017 - 05:44
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00773F, PaperEunyong Seo, Sang-Ho Lee, Sangho Lee, Soohyung Choi, Craig J Hawker, Byeong-Su Kim
We herein report a facile synthetic method for preparing gold nanoparticles (Au NPs) with superior colloidal stability by using a series of double hydrophilic block copolymers (DHBC), poly(ethylene oxide)-block-poly(acrylic acid)...
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Effect of trehalose polymer regioisomers on protein stabilization

RSC - Polym. Chem. latest articles - Mon, 07/03/2017 - 12:32

Polym. Chem., 2017, Advance Article
DOI: 10.1039/C7PY00700K, PaperMarco S. Messina, Jeong Hoon Ko, Zhongyue Yang, M. Jane Strouse, K. N. Houk, Heather D. Maynard
Polymers with different trehalose side chain regioisomers were synthesized and compared for insulin stabilization.
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In-situ Polymerization of Supramolecular Nanorods Assembled from Polymerizable Perylene Bisimide

RSC - Polym. Chem. latest articles - Mon, 07/03/2017 - 07:30
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00895C, PaperYan Sun, Zhibo Li
Dimethacryl amide functionzed perylene bisimide monomer was synthesized. Such polymerizable monomer can self-assemble into one dimensional rod-like structures with a mean diameter of ca. 100 nm and length of several...
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Poly(acryloyl hydrazide) as a versatile scaffold for the preparation of functional polymers: Synthesis and post-polymerisation modification

RSC - Polym. Chem. latest articles - Mon, 07/03/2017 - 07:30
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00535K, PaperDaniel Crisan, Oliver Creese, Branadeb Ball, Jose Luis Brioso, Ben Martyn, Javier Montenegro, Francisco Fernandez-Trillo
Here we present the synthesis and post-polymerisation modification of poly(acryloyl hydrazide), a versatile scaffold for the preparation of functional polymers: Poly(acryloylhydrazide) was prepared from commercially available starting materials in a...
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Comprehensive Analysis of Branched Polyethylene: The Multiple Preparative Fractionation Concept

RSC - Polym. Chem. latest articles - Mon, 07/03/2017 - 07:30
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00893G, PaperHarald Pasch, Paul Bungu
The branching distributions in low density polyethylene (LDPE) which originate from the radical polymerization processes can be expressed as short chain branching (SCB) and long chain branching (LCB). Since both...
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One-pot synthesis of micron-sized polybetaine particles; innovative use of supercritical carbon dioxide

RSC - Polym. Chem. latest articles - Mon, 07/03/2017 - 07:30
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00455A, PaperSimon Bassett, Natasha Birkin, James Jennings, Emma Chapman, Rachel K. O'Reilly, Steven M Howdle, Helen Willcock
Polybetaines exhibit unique properties including anti-polyelectrolyte and low protein fouling behaviour, as well as biocompatibility. We recently presented the synthesis of ca. 20 nm polybetaine particles by aqueous RAFT polymerisation,...
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Soluble, optically transparent polyamides with a phosphaphenanthrene skeleton: synthesis, characterization, gas permeation and molecular dynamics simulations

RSC - Polym. Chem. latest articles - Fri, 06/30/2017 - 05:56

Polym. Chem., 2017, Advance Article
DOI: 10.1039/C7PY00687J, PaperSoumendu Bisoi, Arun Kumar Mandal, Asheesh Singh, Venkat Padmanabhan, Susanta Banerjee
Soluble, optically transparent polyamides with a phosphaphenanthrene skeleton: synthesis, characterization, gas permeation and molecular dynamics simulations.
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Novel photoacid generator for cationic photopolymerization

RSC - Polym. Chem. latest articles - Thu, 06/29/2017 - 09:47
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00855D, PaperNicolas Klikovits, Patrick Knaack, Daniel Bomze, Ingo Krossing, Robert Liska
Cationic photopolymerization is a powerful method for UV-curing of epoxy, vinyl ether and oxetane monomers. It has still lacked attention over the last decades compared to corresponding free radical applications...
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Categories: Polymer Science News

Radical polymerization in the presence of peroxide monomer: an approach to branched vinyl polymers

RSC - Polym. Chem. latest articles - Thu, 06/29/2017 - 09:47
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00844A, PaperJiang Qimin, jiating li, Wenyan Huang, Dongliang Zhang, Jianhai Chen, Hongjun Yang, Xiaoqiang Xue, Bibiao Jiang
In this paper, we report the radical polymerization in the presence of peroxide monomer for the preparation of branched vinyl polymers. The peroxide monomer, tert-butyl peroxyacetate methacrylate (BPAMA), was designed...
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A New Paradigm in Polymerization Induced Self-Assembly (PISA): Exploitation of "Non-Living" Addition-Fragmentation Chain Transfer (AFCT) Polymerization

RSC - Polym. Chem. latest articles - Thu, 06/29/2017 - 09:47
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00998D, CommunicationDewen Zhou, Rhiannon P. Kuchel, Per Bo Zetterlund
Polymerization-induced self-assembly (PISA) is conducted based on "non-living" radical dispersion polymerization in the form of addition-fragmentation chain transfer (AFCT) polymerization. AFCT polymerization of benzyl methacrylate in ethanol using a polymeric...
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Carbazole-Based Copolymers via Direct Arylation Polymerization (DArP) for Suzuki-Convergent Polymer Solar Cell Performance

RSC - Polym. Chem. latest articles - Wed, 06/28/2017 - 10:37
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00859G, PaperNemal Gobalasingham, Seyma Ekiz, Robert Pankow, Francesco Livi, Eva Bundgaard, Barry Thompson
Although direct arylation polymerization (DArP) has recently emerged as an alternative to traditional cross-coupling methods like Suzuki polymerization, the evaluation of DArP polymers in practical applications like polymer solar cells...
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Categories: Polymer Science News

Distinguishing Relaxation Dynamics in Transiently Crosslinked Polymeric Networks

RSC - Polym. Chem. latest articles - Wed, 06/28/2017 - 10:37
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00574A, PaperCindy Soo Yun Tan, Gillie Agmon, Ji Liu, Dominique Hoogland, Emma-Rose Janecek, Eric Appel, Oren A. Scherman
Polymeric materials based on reversible non-covalent associations possess diverse mechanical behaviour, responsiveness to external stimuli and self-healing properties. Unlike covalently-bonded polymeric materials, whose properties are conventionally engineered through the polymer...
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Fabrication of graphene-biomacromolecule hybrid materials for tissue engineering application

RSC - Polym. Chem. latest articles - Wed, 06/28/2017 - 06:34
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00935F, Review ArticleDapeng Li, Tianjiao Liu, Xiaoqing Yu, Di Wu, Zhiqiang Su
Graphene (G) and its composites have attracted a lot of interests in recent years due to their high biocompatibility, large surface area, excellent electrical conductivity, and unique thermal property. The...
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Effects of Molecular Weight Distribution on the Self-Assembly of End-Functionalized Polystyrenes

RSC - Polym. Chem. latest articles - Tue, 06/27/2017 - 10:26
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00803A, PaperBai-Heng Wu, Qi-Zhi Zhong, Zhi-Kang Xu, Ling-Shu Wan
Molecular weight distribution (MWD) of polymers shows influences on their phase separation, crystallization, self-assembly, and mechanical properties. It is well known that the architecture of polymers plays a crucial role...
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Categories: Polymer Science News

A facile construction of crosslinked anion exchange membrane based on fluorenyl-containing polysulfone via click chemistry

RSC - Polym. Chem. latest articles - Tue, 06/27/2017 - 10:26
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00789B, PaperBo Hu, Luyang Miao, Yang Bai, Changli lv
A series of fluorenyl-containing polysulfone-based crosslinked anion exchange membranes with high conductivity and excellent stability were fabricated via click chemistry. Azide groups were firstly introduced into the side chains of...
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Categories: Polymer Science News

All-conjugated P3HT donor PCDTBT acceptor graft copolymers via a grafting through approach

RSC - Polym. Chem. latest articles - Tue, 06/27/2017 - 10:26
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00612H, PaperDaniel Schiefer, Ralf Hanselmann, Michael Sommer
A generally applicable synthetic method to all-conjugated graft copolymers is presented. By using an PCDTBT acceptor backbone and poly(3-hexylthiophene) (P3HT) grafts, all conjugated graft copolymers are synthesized using a grafting-through...
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Categories: Polymer Science News

Astaxanthin-based polymers as new antimicrobial compounds

RSC - Polym. Chem. latest articles - Tue, 06/27/2017 - 09:26
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00663B, PaperSagiv Weintraub, Tal Shpigel , Llinos Harris, Ronen Schuster, Eli Lewis, Dan Lewitus
A library of novel high molecular weight polymers based on the natural carotenoid astaxanthin (ATX) has been successfully synthesized. ATX is a powerful antioxidant, known for its various therapeutic properties...
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Evaluation of an External Initiating Ni(II) Diimine Catalyst for Electron-Deficient [small pi]-Conjugated Polymers

RSC - Polym. Chem. latest articles - Tue, 06/27/2017 - 08:25
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00873B, PaperAdam Pollit, Nimrat Obhi, Alan Lough, Dwight Seferos
We have prepared, isolated, and evaluated the first Ni(II) diimine catalyst able to externally initiate the Kumada catalyst transfer polymerization of an electron-deficient [small pi]-conjugated monomer. The catalyst installs an o-methoxyphenyl...
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Retinol initiated poly(lactide)s: Stability upon polymerization and nanoparticle preparation

RSC - Polym. Chem. latest articles - Mon, 06/26/2017 - 10:16
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00881C, PaperUlrich Sigmar Schubert, Ilknur Yildirim, Christine Weber, Turgay Yildirim, Diana Kalden, Grit Festag, Nicole Fritz, Stephanie Schubert, Matthias Westerhausen
The synthesis of retinol initiated polylactide (PLA) by ring opening polymerization (ROP) of L-lactide via in-situ calcium alkoxide formation with all-trans-retinol and Ca[N(SiMe3)2]2(THF)2 is described. PLAs with degree of polymerization...
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Chiral stationary phases consisting of [small pi]-conjugated polymers bearing glucose-linked biphenyl units: Reversible switching of resolution abilities based on coil-to-helix transition

RSC - Polym. Chem. latest articles - Mon, 06/26/2017 - 08:13
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00804J, PaperTomoyuki Ikai, Seiya Awata, Tomoya Kudo, Ryoma Ishidate, Katsuhiro Maeda, Shigeyoshi Kanoh
A series of optically active [small pi]-conjugated polymers (poly-2-poly-5) consisting of alternating thieno[3,4-b]thiophene and glucose-linked biphenyl units were synthesized through copolymerizations by Sonogashira-Hagihara cross-coupling. Absorption and circular dichroism spectroscopies and theoretical...
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