Polymer Science News

Pyridine-Incorporated Alcohol-Soluble Neutral Polyfuorene Derivatives as Efficient Cathode-Modifying Layers for Polymer Solar Cells

RSC - Polym. Chem. latest articles - 2 hours 49 min ago
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01521F, PaperGuiting Chen, Sha Liu, Zhicai He, Hongbin Wu, Wei Yang, Bin Zhang, Yong Cao
A class of novel alcohol-soluble conjugated polymers with pyridine incorporated at the side chains of fluorene scaffolds is developed and utilized as cathode interfacial layers (CILs) for both conventional and...
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Investigation of the triazolinedione (TAD) reaction with tryptophan as a direct route to copolypeptide conjugation and cross-linking

RSC - Polym. Chem. latest articles - 3 hours 50 min ago
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01477E, CommunicationSaltuk Hanay, Dermot F Brougham, Aylvin A. Dias, Andreas Heise
The reaction of tryptophan containing N-carboxyanhydride (NCA) derived polypeptides with triazolinedion (TAD) is demonstrated. This click-like reaction is fast, selective and permits polypeptide conjugation utilising a natural amino acid. It...
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Categories: Polymer Science News

All-Acrylic Superelastomers: Facile Synthesis and Exceptional Mechanical Behavior

RSC - Polym. Chem. latest articles - 4 hours 50 min ago
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01518F, PaperNam-Goo Kang, Wei Lu, Andrew Goodwin, Yangyang Wang, Panchao Yin, Weiyu Wang, Jiahua Zhu, Ting Wu, Xinyi Lv, Bin Hu, Kunlun Hong, Jimmy W. Mays
All-acrylic multigraft copolymers, poly(butyl acrylate)-g-poly(methyl methacrylate), synthesized using a facile grafting-through methodology, exhibit elongation at break (>1700%) and strain recovery behavior far exceeding those of any commercial acrylic (~500%) and...
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Categories: Polymer Science News

Temperature-responsive hydrogels via the electrostatic interaction of amphiphilic diblock copolymers with pendant-ion groups

RSC - Polym. Chem. latest articles - 4 hours 50 min ago

Polym. Chem., 2017, Advance Article
DOI: 10.1039/C7PY01460K, PaperHye Yun Lee, Seung Hun Park, Jae Ho Kim, Moon Suk Kim
In this work, we prepared amphiphilic polyester diblock copolymers with pendant-ion groups and examined the formation of temperature-responsive hydrogels via the electrostatic interaction of cationic or anionic pendant groups.
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In Situ Stabilizer Formation from Methacrylic Acid Macromonomers in Emulsion Polymerization

RSC - Polym. Chem. latest articles - 6 hours 52 min ago
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01583F, Paper Open Access &nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Ingeborg Schreur-Piet, Johan P.A. Heuts
Oligomers of methacrylic acid containing a propenyl [small omega]-endgroup (i.e. MAA-macromonomers) were synthesized by cobalt-mediated catalytic chain transfer polymerization and used as precursors to stabilizers in emulsion polymerization. It was found...
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Categories: Polymer Science News

Multi POSS Cluster-Wrapped Polymers and Their Block Copolymers with A PEO Bottlebrush Polymer: Synthesis and Aggregation

RSC - Polym. Chem. latest articles - 7 hours 52 min ago
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01344B, PaperChui-Song Meng, Yu-Kun Yan, Wei Wang
In this paper, we report an approach for synthesizing multi cluster-wrapped polymers and their block copolymers with a bottlebrush polymer with controlled chain length and composition via the living ring-opening...
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Thermo and pH dual-responsive drug-linked pseudo-polypeptide micelles with comb-shaped polymer as micellar exterior

RSC - Polym. Chem. latest articles - 7 hours 52 min ago
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01389B, PaperWeizhi Chen, Liling Su, Peng Zhang, Cheng Li, Dan Zhang, Wei Wu, Xiqun Jiang
Thermo and pH dual-responsive drug-linked pseudo-polypeptide micelles were prepared by self-assembly strategy. Initially, a temperature-responsive comb-shaped poly(2-isopropyl-2-oxazoline)-b-linear poly(acrylic acid) block copolymer (CPiPrOx-b-PAA) was synthesized through a combination of living cationic...
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Gelatin based dynamic hydrogels via thiol-norbornene reactions

RSC - Polym. Chem. latest articles - 8 hours 55 min ago
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01630A, PaperMario Perera, Neil Ayres
Gelatin based dynamic hydrogels have been synthesized by crosslinking norbornene functionalized gelatin with poly(2-hydroxypropyl methacrylate-s-mercaptoethyl methacrylate) (poly(HPMA-s-MEMA)) using radical mediated thiol-norbornene reactions. The poly(HPMA-s-MEMA) was prepared from a pyridyl disulfide...
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A detailed mechanistic study of bulk MADIX of styrene and its chain extension

RSC - Polym. Chem. latest articles - Mon, 10/16/2017 - 05:16
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00961E, PaperDries Devlaminck, Paul Van Steenberge, Lies De Keer, Marie-Francoise Reyniers, Dagmar D'hooge
The microstructural evolution of individual macrospecies during bulk macromolecular design by interchange of xanthates (MADIX) of styrene, with (O-ethyl xanthate)-2-ethyl propionate as initial agent (R0X), and its chain extension with...
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Categories: Polymer Science News

Enzymatic Approach for the Synthesis of Biobased Aromatic-aliphatic Oligo-/Polyesters

RSC - Polym. Chem. latest articles - Fri, 10/13/2017 - 07:16
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01559C, PaperCsaba Fodor, Milad Golkaram, Jur van Dijken, Albert Woortman, Katja Loos
Aromatic moiety containing oligoesters have been synthetized by enzymatic polymerization of AB-type alkylenehydroxybenzoates via different polymerization methods. Oligo(2-hydroxyethyloxy benzoate) (OHEBA) were obtained with number average molecular weights (Mn) around 2000...
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Synthesis of Sustainable Guar gum-g-(Acrylic Acid-co-Acrylamide-co-3-Acrylamido Propanoic Acid) Interpenetrating Polymer Network via in situ Attachment of 3-Acrylamido Propanoic Acid for Analyzing Superadsorption Mechanism of Pb(II)/Cd(II)/Cu(II) and...

RSC - Polym. Chem. latest articles - Fri, 10/13/2017 - 06:01
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01564J, PaperNayan Ranjan Singha, Manas Mahapatra, Mrinmoy Karmakar, Arnab Dutta, Himarati Mondal, Pijush Kanti Chattopadhyay
For the first time, guar gum-g-(acrylic acid-co-acrylamide-co-3-acrylamido propanoic acid) (GGAAAMAPA), a smart environment-friendly and sustainable interpenetrating polymer network hydrogel, acquiring unprecedented thermomechanical/physicochemical properties and excellent recyclability, has been synthesized by...
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Categories: Polymer Science News

Nonstoichiometric Polycondensation Based on Friedel-Crafts Acylation in Superacid for the Synthesis of Aromatic Polyketones

RSC - Polym. Chem. latest articles - Thu, 10/12/2017 - 10:10
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01609C, CommunicationKazuya Matsumoto, Takayuki Ogawa, Mitsutoshi Jikei
Based on the Friedel-Crafts acylation, the nonstoichiometric polycondensation was achieved using 4,4'-dicarboxydiphenyl ether and 2,2'-dimethoxybiphenyl in trifluoromethanesulfonic acid. The decrease in the acylation reactivity of 2,2'-dimethoxybiphenyl by protonation and the...
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Categories: Polymer Science News

Stimuli responsive self-healing polymers: gels, elastomers and membranes

RSC - Polym. Chem. latest articles - Wed, 10/11/2017 - 11:29
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01386H, Review ArticleAderito J. R. Amaral, Georgios Pasparakis
In recent years, the development of responsive polymers has expanded significantly owing to the constant development of new chemistries and controlled polymerization methods, which allow for the synthesis of complex...
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Categories: Polymer Science News

Controlled poly(olefin)s via decarboxylation of poly(acrylic acid)

RSC - Polym. Chem. latest articles - Wed, 10/11/2017 - 07:11
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01466J, PaperRobert Chapman, Daniele Melodia, Jianbo Qu, Martina Heide Stenzel
The preparation of polyolefins using controlled radical polymerisation (CRP) has long been a goal of polymer chemistry, but is hampered by the instability of olefin radicals. Herein we propose a...
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Categories: Polymer Science News

Bioinspired coating of TiOtext-decoration:underline"2 nanoparticles with antimicrobial polymers by Cu(0)-LRP: grafting to vs grafting from

RSC - Polym. Chem. latest articles - Wed, 10/11/2017 - 06:10
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01471F, PaperShutong Guo, Qiang Zhang, Donghao Wang, Lu Wang, Fang Lin, Paul Wilson, David Haddleton
In this study, titanium dioxide (TiOtext-decoration:underline"2) nanoparticles coated by non-leachable biocides were prepared by chemically attaching tertiary-amine-containing polymers to the surface of TiOtext-decoration:underline"2. Copper (0) mediated living radical polymerization (Cu(0)-LRP)...
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Categories: Polymer Science News

Dual stimuli responsive self-healing and malleable materials based on dynamic thiol-Michael chemistry

RSC - Polym. Chem. latest articles - Tue, 10/10/2017 - 13:13
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01356F, PaperProgyateg Chakma, Luiz Henrique Rodrigues Possarle, Zachary Digby, Borui Zhang, Jessica Sparks, Dominik Konkolewicz
Thiol-maleimide adducts have been used as dynamic crosslinkers to form soft, elastic, and stimuli responsive polymeric materials. Thiol-Michael adducts can undergo dynamic exchange at elevated temperature or elevated pH values....
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Categories: Polymer Science News

Acrylamides with hydrolytically labile carbonate ester side chains as versatile building blocks for well-defined block copolymer micelles via RAFT polymerization

RSC - Polym. Chem. latest articles - Mon, 10/09/2017 - 10:48
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01345K, PaperSabah Kasmi, Benoit Louage, Lutz Nuhn, Glenn Verstraete, Simon Van herck, Mies van Steenbergen, Wim Hennink, Chris Vervaet, Bruno De Geest
En route towards improved delivery systems for targeted chemotherapy, we propose a straightforward approach for the hydrophobic modification of the acrylamide N-(2-hydroxyethy)acrylamide (HEAm). An ethyl or benzyl group was introduced...
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Categories: Polymer Science News

An efficient approach to synthesize glycerol dendrimers via thiol-yne "click" chemistry and their application in stabilization of gold nanoparticles with X-ray attenuation property

RSC - Polym. Chem. latest articles - Mon, 10/09/2017 - 07:44
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01436H, PaperNa Li, Tik Hung Tsoi, Wai-Sum Lo, Yanjuan Gu, Hoi-Ying Wan, Wing-Tak Wong
We report here a facile, robust and efficient synthetic approach to glycerol dendrimers in different generations with up to 256 terminal groups, by using light-mediated thiol-yne "click" reaction and propargylation...
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Categories: Polymer Science News

Multifunctional Polymers Built on Copper-Thioether Coordination

RSC - Polym. Chem. latest articles - Mon, 10/09/2017 - 07:44
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01359K, PaperJiuyang Zhang, Min Li, Lin Cheng, Tuoqi Li
Copper(I)-thioether complexes have been extensively studied in literature due to several merits, including the diversity of coordination structures, the convenience and low-cost of preparation. In this work, acrylate-based block polymers...
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Categories: Polymer Science News

Polymers with acyl-protected perthiol chain termini as convenient building blocks for doubly responsive H2S-donating nanoparticles

RSC - Polym. Chem. latest articles - Fri, 10/06/2017 - 10:21

Polym. Chem., 2017, Advance Article
DOI: 10.1039/C7PY01484H, CommunicationSul Hwa Yu, Francesca Ercole, Nicholas A. Veldhuis, Michael R. Whittaker, Thomas P. Davis, John F. Quinn
H2S-releasing polymers with an acyl-protected perthiol chain terminus were prepared using a simple, high yielding end-group modification process.
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