Polymer Science News

In situ synthesis of the self-assembled AB/B blend of poly(ethylene glycol)-b-polystyrene/polystyrene by dispersion RAFT polymerization

RSC - Polym. Chem. latest articles - Mon, 03/13/2017 - 03:45
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00339K, PaperBing Yuan, Xin He, Yaqing Qu, Chengqiang Gao, Erika Eiser, Wangqing Zhang
The diblock-copolymer/homopolymer self-assembled blend of poly(ethylene glycol)-block-polystyrene/polystyrene (PEG-b-PS/PS) was synthesized through dispersion RAFT polymerization. In this dispersion RAFT polymerization, a macro-RAFT agent and a small RAFT agent containing the same...
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Categories: Polymer Science News

Dynamic covalent diarylbibenzofuranone-modified nanocellulose: Mechanochromic behaviour and application in self-healing polymer composites

RSC - Polym. Chem. latest articles - Mon, 03/13/2017 - 02:44
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00074J, PaperKeiichi Imato, Jens Natterodt, Janak Sapkota, Raita Goseki, Christoph Weder, Atsushi Takahara, Hideyuki Otsuka
The surface of cellulose nanocrystals (CNCs) was modified with a scissile but reversibly recombinable dynamic covalent mechanophore, and the activation of the mechanophore on the CNC surface in bulk was...
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Categories: Polymer Science News

Tunable Assembly and Disassembly of Responsive Supramolecular Polymer Brushes

RSC - Polym. Chem. latest articles - Mon, 03/13/2017 - 02:44
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00149E, PaperJingcheng Hao, Zhiliang Gao, Mengjun Chen, Yuanyuan Hu, Shui Dong, Jiwei Cui
Abstract We report the synthesis and assembly of light-responsive supramolecular polymer brushes based on host-guest interaction between [small beta]-cyclodextrin ([small beta]-CD) on star-like side chains and azobenzene groups on polymer backbone. The...
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Categories: Polymer Science News

Construction of stimuli-responsive supramolecular gel via bispillar[5]arene-based multiple interactions

RSC - Polym. Chem. latest articles - Fri, 03/10/2017 - 09:15
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00335H, CommunicationTai-Bao Wei, Jin-Fa Chen, Xiao-Bin Cheng, Hui Li, Bing-Bing Han, Hong Yao, You-Ming Zhang, Qi Lin
A linear supramolecular polymer has been constructed from host-guest recognition of two complementary homoditopic monomers, a novel bispillar[5]arene and a bipyridinium salt derivative. Furthermore, the linear supramolecular polymer could self-assemble...
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Categories: Polymer Science News

One-shot controlled/living copolymerization for various comonomer sequence distributions via dual radical and cationic active species from RAFT terminals

RSC - Polym. Chem. latest articles - Fri, 03/10/2017 - 06:12
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00324B, PaperKotaro Satoh, Hideyuki Hashimoto, Shinya Kumagai, Hiroshi Aoshima, Mineto Uchiyama, Ryoma Ishibashi, Yuuma Fujiki, Masami Kamigaito
In this study, we investigated one-shot copolymerization of vinyl ether with acrylates or vinyl esters in the presence of an aluminum-based Lewis acid and azo-initiator in toluene at 20 ˚C....
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Categories: Polymer Science News

Supramolecular fluorescent nanoparticles functionalized with controllable physical properties and temperature-responsive release behavior

RSC - Polym. Chem. latest articles - Thu, 03/09/2017 - 06:01
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00276A, PaperChih-Chia Cheng, Jyun-Jie Huang, Adem Ali Muhable, Zhi-Sheng Liao, Shan-You Huang, Shun-Chieh Lee, Chih-Wei Chiu, D. J. Lee
Supramolecular fluorescent nanoparticles (SFNs), a combination of hydrogen-bonded supramolecular macromers and fluorescent pyrene dyes, can spontaneously self-assemble into thermosensitive micelles in an aqueous environment; the resulting micelles exhibit unique thermo-responsiveness...
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Categories: Polymer Science News

Facile Synthesis and Chiral Recognition of Block and Star Copolymers Containing Stereoregular Helical Poly(phenyl isocyanide) and Polyethylene Glycol Blocks

RSC - Polym. Chem. latest articles - Thu, 03/09/2017 - 03:58
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00028F, PaperNa Liu, Cui-Hong Ma, Rui-Wen Sun, Jian Huang, Chonglong Li, Zong-Quan Wu
A new Pd(II) initiator bearing an alkyne headgroup was designed and synthesized. Living polymerization of phenyl isocyanide using this Pd(II) initiator afford well-defined alkyne-terminated helical poly(phenyl isocyanide) (PPI) with controlled...
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Categories: Polymer Science News

Side-Chain Engineering for Fine-Tuning of Molecular Packing and Nanoscale Blend Morphology in Polymer Photodetectors

RSC - Polym. Chem. latest articles - Thu, 03/09/2017 - 03:58
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00087A, PaperLiuyong Hu, Wenqiang Qiao, Xiaokang Zhou, Jinfeng Han, xiaoqin Zhang, Dongge Ma, Yuning Li, Zhi Yuan Wang
A series of four low-bandgap polymers containing diketopyrrolopyrrole (DPP) and dithienopyrrole (DTP) functionalized with four different side chains of 4-phenyl, 4-octylphenyl, 4-(octyloxy)phenyl and 4-(octylthio)phenyl were synthesized. Subtle changes in the...
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Categories: Polymer Science News

Well-defined hyperstar copolymers based on a thiol-yne hyperbranched core and a poly(2-oxazoline) shell for biomedical applications

RSC - Polym. Chem. latest articles - Tue, 03/07/2017 - 10:26
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00303J, PaperMatthias Hartlieb , Thomas Floyd, Alexander Cook, Carlos Sanchez-Cano, Sylvain Catrouillet, James A. Burns, Sebastien Perrier
Well defined 'hyperstar' copolymers were synthesized by combining hyperbranched polymers produced by thiol-yne chemistry with poly(oxazoline)s. The hyperbranched core was prepared using an AB2 monomer and a trifunctional alkene, applying...
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Categories: Polymer Science News

Preparation of Pt(IV)-crosslinked polymer nanoparticles with anti-detoxifying effect for enhanced anticancer therapy

RSC - Polym. Chem. latest articles - Tue, 03/07/2017 - 08:25
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C6PY02148D, PaperZihao Zhang, Yongjing Li, Jiaxun Wan, Peihua Long, Jia Guo, Guosong Chen, Changchun Wang
Cisplatin is a widely-used chemotherapeutic drug in the clinic against a range of cancers. However, its anti-cancer efficacy and bioavailability are severely suffered by systemic toxicities as well as drug...
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Categories: Polymer Science News

Poly(fluoroacrylate)s with tunable surface hydrophobicity via radical copolymerization of 2,2,2-trifluoroethyl -fluoroacrylate and 2-(trifluoromethyl)acrylic acid

RSC - Polym. Chem. latest articles - Tue, 03/07/2017 - 06:24
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00209B, PaperSanjib Banerjee, Bhausaheb Tawade, Vincent Ladmiral, Lionel Dupuy, Mike P MacDonald, Bruno Ameduri
: The synthesis of poly(fluoroacrylate)s with tunable wettability and improved adhesion for potential application as functional coating was achieved via radical copolymerization of 2,2,2-trifluoroethyl [small alpha]-fluoroacrylate (FATRIFE) with 2-(trifluoromethyl)acrylic acid (MAF),...
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Synthesis and Characterisation of Semiaromatic Polyamides Comprising Benzofurobenzofuran Repeating Units

RSC - Polym. Chem. latest articles - Tue, 03/07/2017 - 06:24
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00129K, PaperJulien Cretenoud, Bilal Ozen, Thomas Schmaltz, Daniel Gorl, Alberto Fabrizio, Clemence Corminboeuf, Farzaneh Fadaei, Rosario Scopelliti, Holger Frauenrath
Semiaromatic polyamides are attractive engineering polymers owing to their outstanding thermomechanical properties. To expand the scope of semiaromatic polyamides by additional optoelectronic features, one may consider to incorporate extended [small pi]-conjugated...
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Categories: Polymer Science News

A Novel Post-Polymerization Modification Route to Functional Poly(disubstituted acetylenes) Through Phenol-Yne Click Reaction

RSC - Polym. Chem. latest articles - Mon, 03/06/2017 - 06:17
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00109F, PaperWenjie Wang, Yang Shi, Xiao Wang, Anjun Qin, Jing Zhi Sun, Ben Zhong Tang
We report a new synthetic strategy to derive functional poly(disubstituted acetylenes) (PDSAs) through "phenol-yne click reaction". The phenol-containing PDSA was prepared by the polymerization of the triisopropylsilan (TIPS)-protected 4-((4-fluorophenyl)ethynyl)phenol monomer...
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Categories: Polymer Science News

Tunable dynamic fluorinated poly(ortho ester)-based drug carriers for greatly enhanced chemotherapeutic efficacy

RSC - Polym. Chem. latest articles - Mon, 03/06/2017 - 06:17
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C6PY02204A, PaperGuoqing Yan, Jun Wang, Panpan Zhang, Liefeng Hu, Xin Wang, Guanqing Yang, Shengxiang Fu, Xu Cheng, Rupei Tang
To promote chemotherapeutic efficacy, a dynamic drug delivery system has been prepared, which can remain stealthy and stable in the blood vessels, improve drug penetration and retention at extracellular stimuli,...
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Categories: Polymer Science News

CO2-triggered UCST transition of amphiphilic triblock copolymers and their self-assemblies

RSC - Polym. Chem. latest articles - Mon, 03/06/2017 - 05:17
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00186J, PaperShaojian Lin, Jiaojiao Shang, Patrick Theato
A well-defined thermo- and CO2-responsive triblock copolymer, poly[(ethylene glycol)methyl ether]-block-poly(acrylamide-co-acrylonitrile)-block-poly(N,N-diethylamino ethyl methacrylate) (PEG-b-P(AAm-co-AN)-b-PDEAEMA), was synthesized via reversible addition-fragmentation chain transfer (RAFT) polymerization. It contains a temperature responsive segment based on...
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Categories: Polymer Science News

Conventional Type II Photonitiators as Activators for Photoinduced Metal Free Atom Transfer Radical Polymerizartion

RSC - Polym. Chem. latest articles - Mon, 03/06/2017 - 05:17
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00114B, PaperAndrit Allushi, Ceren Kutahya, Cansu Aydogan, Johannes Kreutzer, Gorkem Yilmaz, Yusuf Yagci
A novel methodology for photoinduced metal free Atom Transfer Radical Polymerization (ATRP) by using conventional Type II photoinitiators such as benzophenone, thioxanthone, isopropyl thioxanthone and camphorquinone as sensitizers is presented....
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Categories: Polymer Science News

Hydrophobic polypyrrole synthesized by aqueous chemical oxidative polymerization and its use as a light-responsive liquid marble stabilizer

RSC - Polym. Chem. latest articles - Mon, 03/06/2017 - 05:17
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00158D, PaperHisato Kawashima, Hiroyuki Mayama, Yoshinobu Nakamura, Syuji Fujii
Hydrophobic polypyrroles were synthesized by aqueous chemical oxidative polymerization in the presence of perfluoroalkyl dopants with various perfluoroalkyl chain lengths in a single-step, one-pot manner. The resulting polypyrroles were extensively...
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Categories: Polymer Science News

Title: Highly cost-effective and high-strength hydrogels as dye adsorbents from natural polymer: chitosan and cellulose

RSC - Polym. Chem. latest articles - Mon, 03/06/2017 - 04:17
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00223H, PaperHu Tu, Yi Yu, Jiajia Chen, Xiaowen Shi, Jialin Zhou, Hongbing Deng, Y. Du
Seeking for cost-effective and high-strength dye adsorbent has become an urgent problem in wastewater treatment field. Natural polymers, such as chitosan and cellulose, were low-cost and could be fabricated as...
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Categories: Polymer Science News

Zwitterionic Polymer Brush Grafting on Anodic Aluminum Oxide Membranes by Surface-Initiated Atom Transfer Radical Polymerization

RSC - Polym. Chem. latest articles - Mon, 03/06/2017 - 04:17
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00045F, PaperChien-Wei Chu, Yuji Higaki, Chao-Hung Cheng, Ming-Hsiang Cheng, Chun-Wei Chang, Jiun-Tai Chen, Atsushi Takahara
A feasible processing of zwitterionic polymer-grafted anodic aluminum oxide (AAO) membranes by surface-initiated atom transfer radical polymerization (SI-ATRP) and the geometric effect on the polymer chain growth in the confined...
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Categories: Polymer Science News

Hydrogen bonding in radical solution copolymerization kinetics of acrylates and methacrylates: A comparison of hydroxy- and methoxy- functionality

RSC - Polym. Chem. latest articles - Mon, 03/06/2017 - 03:16
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00185A, PaperJan E. S. Schier, David Cohen-Sacal, Robin A. Hutchinson
The pulsed-laser polymerization technique in combination with size exclusion chromatography and nuclear magnetic resonance is used to study the influences of solvent choice and monomer structure on the copolymerization propagation...
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Categories: Polymer Science News

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