Polymer Science News

Preparation of irrefrangible polyacrylamide hybrid hydrogels using water-dispersible cyclotetrasiloxane or polyhedral oligomeric silsesquioxane containing polymerizable groups as cross-linkers

RSC - Polym. Chem. latest articles - Tue, 04/03/2018 - 11:41
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00354H, PaperMakoto Yanagie, Yoshiro Kaneko
In this study, polyacrylamide (PAAm) hybrid hydrogels were prepared using water-dispersible single-structured cyclotetrasiloxane (CyTS-MNa) or polyhedral oligomeric silsesquioxane (POSS-MNa) containing polymerizable groups as cross-linkers, and the mechanical properties of the...
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Reversible-addition fragmentation chain transfer (RAFT) mediated depolymerization of brush polymers

RSC - Polym. Chem. latest articles - Tue, 04/03/2018 - 09:40
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00446C, PaperMichael Flanders, William Mike Gramlich
Brush polymers synthesized by reversible-addition fragmentation chain transfer (RAFT) polymerization underwent depolymerization when heated in the absence of initiator. The depolymerizations followed pseudo first order kinetics and reached significant monomer...
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Categories: Polymer Science News

Near-infrared light triggered photothermal and photodynamic therapy with an oxygen-shuttle endoperoxide of anthracene against tumor hypoxia

RSC - Polym. Chem. latest articles - Tue, 04/03/2018 - 05:33

Polym. Chem., 2018, Advance Article
DOI: 10.1039/C8PY00289D, PaperZheng Yuan, Shan Yu, Fangyi Cao, Zhengwei Mao, Changyou Gao, Jun Ling
Novel oxygen self-carrying nanoparticles based on substituted diphenyl anthracene and IR780 were developed against tumor hypoxia.
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A novel supramolecular polymer network based on a catenane-type crosslinker

RSC - Polym. Chem. latest articles - Mon, 04/02/2018 - 23:02
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C7PY02034A, CommunicationWenbo Wang, Hao Xing
A novel supramolecular mechanically interlocked crosslinker (SMIC) was designed and used to prepare supramolecular polymer network. Namely, a Leigh-type secondary amide [2]catenane bearing two benzo-21-crwon-7 moieties was synthesized as the...
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Categories: Polymer Science News

Chirality Induction of Achiral Polydialkylfluorenes by Chiral Solvation: Odd-Even and Side-Chain-Length Dependence

RSC - Polym. Chem. latest articles - Mon, 04/02/2018 - 08:08
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00114F, PaperYin Zhao, Hailing Chen, Lu Yin, Xiaoxiao Cheng, Wei Zhang, Xiulin Zhu
In this contribution, we report the first odd-even and side-chain length dependence on the chiral induction of achiral polydialkylfluorenes (PFs) by chiral solvation. Firstly, a serials of PFs, substituted at...
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Categories: Polymer Science News

High-performance cationic polyrotaxanes terminated with polypeptides as promising nucleic acid delivery systems

RSC - Polym. Chem. latest articles - Mon, 04/02/2018 - 08:08
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00333E, PaperFujian Xu, Hai-Qing Song, Yu Qi, Quiquan Li, Gang Cheng, NN Zhao
Nucleic acid (NA)-based therapy was put forward as a promising way to conquer serious human diseases. Safe and robust gene vectors play an important role in NA delivery processes. In...
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Categories: Polymer Science News

Synthesis of an indacenodithiophene-based fully conjugated ladder polymer and its optical and electronic properties

RSC - Polym. Chem. latest articles - Thu, 03/29/2018 - 08:40
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00351C, CommunicationYuli Yin, Shiying Zhang, Daoyuan Chen, Fengyun Guo, Gui Yu, Liancheng Zhao, Yong Zhang
A fully conjugated ladder polymer (PFIDT) based on indacenodithiophene unit was synthesized via a simple strategy. PFIDT displays a strong intramolecular charge transfer character with a small Stocks shift as...
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Categories: Polymer Science News

The multicomponent Debus-Radziszewski reaction in macromolecular chemistry

RSC - Polym. Chem. latest articles - Thu, 03/29/2018 - 05:34
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00173A, MinireviewSamantha Saxer, Catherine Danielle Marestin, Regis Mercier, Jerome Dupuy
The well-known Debus-Radziszewski reaction is over one century old. However, this reaction has only been considered very recently as a new tool to design original imidazole and imidazolium-containing polymers by...
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Categories: Polymer Science News

Photochemical regulation of a redox-active olefin polymerization catalyst: controlling polyethylene microstructure with visible light

RSC - Polym. Chem. latest articles - Tue, 03/27/2018 - 10:41

Polym. Chem., 2018, 9,1567-1570
DOI: 10.1039/C7PY01836C, CommunicationJordan M. Kaiser, W. Curtis Anderson, Brian K. Long
The utility of photoredox chemistry is expanded to include microstructural control of polyolefins.
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Categories: Polymer Science News

Polymer brush guided templating on well-defined rod-like cellulose nanocrystals

RSC - Polym. Chem. latest articles - Tue, 03/27/2018 - 10:41

Polym. Chem., 2018, 9,1650-1657
DOI: 10.1039/C7PY01814B, PaperMaria Morits, Ville Hynninen, Nonappa, Antoine Niederberger, Olli Ikkala, Andre H. Groschel, Markus Mullner
Precisely grafted polymer brushes on cellulose nanocrystals guide the formation of silica and yield uniform CNC-based hybrid nanomaterials which are subsequently used in the fabrication of hollow and highly porous silica nanorods.
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Categories: Polymer Science News

Highly functional ellipsoidal block copolymer nanoparticles: a generalized approach to nanostructured chemical ordering in phase separated colloidal particles

RSC - Polym. Chem. latest articles - Tue, 03/27/2018 - 10:41

Polym. Chem., 2018, 9,1638-1649
DOI: 10.1039/C7PY01817G, PaperB. V. K. J. Schmidt, C. X. Wang, S. Kraemer, L. A. Connal, D. Klinger
Spatially controlled introduction of chemical functionalities into ellipsoidal block copolymer nanoparticles is achieved through pre- and post-assembly strategies.
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Categories: Polymer Science News

Polymerizations in oil-in-oil emulsions using 2D nanoparticle surfactants

RSC - Polym. Chem. latest articles - Tue, 03/27/2018 - 10:41

Polym. Chem., 2018, 9,1547-1550
DOI: 10.1039/C7PY01819C, CommunicationBradley J. Rodier, Al de Leon, Christina Hemmingsen, Emily Pentzer
Oil-in-oil emulsions are especially attractive for compartmentalized reactions with water-sensitive monomers which cannot be used with traditional oil/water emulsions.
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Categories: Polymer Science News

Secondary structures of synthetic polypeptide polymers

RSC - Polym. Chem. latest articles - 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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A photocatalyst immobilized on fibrous and porous monolithic cellulose for heterogeneous catalysis of controlled radical polymerization

RSC - Polym. Chem. latest articles - 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

RSC - Polym. Chem. latest articles - 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

RSC - Polym. Chem. latest articles - 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

RSC - Polym. Chem. latest articles - 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

RSC - Polym. Chem. latest articles - 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

RSC - Polym. Chem. latest articles - 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

RSC - Polym. Chem. latest articles - 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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