Polymer Science News

Facile synthesis of branched polyvinyl acetate via redox-initiated radical polymerization

RSC - Polym. Chem. latest articles - Wed, 05/09/2018 - 10:38

Polym. Chem., 2018, Advance Article
DOI: 10.1039/C8PY00286J, PaperNi Zeng, Yuyan Yu, Junbing Chen, Xiao Meng, Leilei Peng, Yi Dan, Long Jiang
Although branched polymers find widespread applications, the rational design and synthesis of branched vinyl polymers via the conventional radical (co)polymerization of commercially available monomers is still a challenge for researchers in this field.
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A high water-soluble triblock conjugated polymer for in vivo NIR-II imaging and photothermal therapy of cancer

RSC - Polym. Chem. latest articles - Wed, 05/09/2018 - 04:32
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00215K, PaperXiaomei Lu, Pengcheng Yuan, Wansu Zhang, Qi Wu, Xiaoxiao Wang, Meng Zhao, Pengfei Sun, Wei Huang, Quli Fan
Applications of the second near infrared (NIR) optical window (NIR-II, 1,000-1,700 nm) have received increasing attention with respect to reduced scattering and negligible auto-fluorescence; thus, achieving a high signal-to-background ratio...
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Categories: Polymer Science News

Novel functionalized polyamides prone to undergo thermal Claisen rearrangement in solid state

RSC - Polym. Chem. latest articles - Wed, 05/09/2018 - 04:32
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00467F, PaperMonica R. de la Viuda, ALBERTO TENA, Silvio Neumann, Sebastian Willruth, Volkan Filiz, Volker Abetz
A novel way of obtaining functionalized polymers by 3,3'-sigmatropic Claisen rearrangement has been developed and identified. The process was identified for three polyamides and three allyl-derivatives with different functional groups...
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Categories: Polymer Science News

Chitosan hydrogelation with a phenothiazine based aldehyde: a synthetic approach toward highly luminescent biomaterials

RSC - Polym. Chem. latest articles - Tue, 05/08/2018 - 10:15

Polym. Chem., 2018, 9,2359-2369
DOI: 10.1039/C7PY01678F, PaperAndrei Bejan, Daniela Ailincai, Bogdan C. Simionescu, Luminita Marin
Hydrogelation of chitosan with a photoactive aldehyde via covalent dynamic chemistry proved an original approach towards efficient luminescent biomaterials.
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Categories: Polymer Science News

Cu(0)-RDRP of methacrylates in DMSO: importance of the initiator

RSC - Polym. Chem. latest articles - Tue, 05/08/2018 - 10:15

Polym. Chem., 2018, 9,2382-2388
DOI: 10.1039/C7PY01196B, PaperGlen R. Jones, Richard Whitfield, Athina Anastasaki, Nuttapol Risangud, Alexandre Simula, Daniel J. Keddie, David M. Haddleton
The controlled radical polymerization of methacrylates via Cu(0)-mediated RDRP is challenging in comparison to acrylates with most reports illustrating higher dispersities, lower monomer conversions and poorer end group fidelity relative to the acrylic analogues.
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Categories: Polymer Science News

A biocompatible diazosulfonate initiator for direct encapsulation of human stem cells via two-photon polymerization

RSC - Polym. Chem. latest articles - Tue, 05/08/2018 - 04:02
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00278A, PaperMaximilian Tromayer, Agnes Dobos, Peter Gruber, Aliasghar Ajami, Roman Dedic, Aleksandr Ovsianikov, Robert Liska
Direct cell encapsulation is a powerful tool for fabrication of biomimetic 3D cell culture models in vitro. This method allows more precise recapitulation of the natural environment and physiological functions...
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Categories: Polymer Science News

Recent Progress in the Stabilization of Supramolecular Assemblies with Functional Polydiacetylenes

RSC - Polym. Chem. latest articles - Mon, 05/07/2018 - 07:17
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00536B, MinireviewNazir Tahir, Audithya Nyayachavadi, Jean-Francois Morin, Simon Rondeau-Gagne
Supramolecular self-assembly is an increasingly popular approach to design and prepare functional materials,for various applications such as organic electronics and sensing. Despite allowing for a precise organization of photo- and...
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Categories: Polymer Science News

Scalable Syntheses of Well-defined Pentadecablock Bipolymer and Quintopolymer

RSC - Polym. Chem. latest articles - Mon, 05/07/2018 - 07:17
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00565F, CommunicationDean Carroll, Anna Constantinou, Natalie Stingelin, Theoni K Georgiou
The one-pot syntheses of two pentadeca-(15)-block methacrylate based amphiphilic copolymers, specifically a bipolymer (AB)7A and a quintopolymer (ABCDE)3 are being reported using a fast and easy to scale up procedure...
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Categories: Polymer Science News

Synthesis and Characterization of [small alpha]-Diamine Palladium Complexes and Insight into Hybridization Effects of Nitrogen Donor Atoms on Norbornene (Co)polymerizations

RSC - Polym. Chem. latest articles - Fri, 05/04/2018 - 07:37
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00395E, PaperTing Zheng, Heng Liao, Jie Gao, Liu Zhong, Haiyang Gao, Wu Qing
Ligand donor atoms play an important role in catalytic olefin polymerization. The nitrogen atom is easily ligated to the metal center with different hybridizations, which is widely applied in the...
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Categories: Polymer Science News

Synthesis and supramolecular organization of chiral poly(thiophene)-magnetite hybrid nanoparticles

RSC - Polym. Chem. latest articles - Thu, 05/03/2018 - 09:55
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00393A, PaperWard Ceunen, Annelien Van Oosten, Rick Vleugels, Thierry Verbiest, Julien De Winter, Pascal Gerbaux, Zhi Li, Steven De Feyter, Guy Koeckelberghs
In this study, poly((S)-3-(3',7'-dimethyloctyl)thiophene) is synthesized via KCTCP, using a catechol-based external Ni-initiator. After characterization, the polymer's catechol functionality is deprotected and coupled with magnetite nanoparticles and the supramolecular organization...
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Categories: Polymer Science News

Highly Efficient Strategies towards Sustainable Monomers and Polymers Derived from Fatty Acids via Tetramethylguanidine Promoted Esterification

RSC - Polym. Chem. latest articles - Thu, 05/03/2018 - 07:54
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00505B, PaperJiangjun Zhou, Mang Wu, Qiang Peng, Feng Jiang, Baoxia Wang, Haowei Pan, Shengquan Liu, Zhongkai Wang
Three easily performed and efficient strategies for preparing sustainable monomers and polymers derived from renewable fatty acids were investigated. All of these strategies relied on highly efficient esterification between halogenated...
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Categories: Polymer Science News

Hyperbranched poly(ether amine) nanomicelles as nanoreactors for the unexpected ultrafast photolysis of fluorescein dyes

RSC - Polym. Chem. latest articles - Thu, 05/03/2018 - 06:52

Polym. Chem., 2018, Advance Article
DOI: 10.1039/C8PY00542G, CommunicationTao Tao, Ruiqing Wang, Hongjie Xu, Jie Yin, Xuesong Jiang
hPEA nanomicelles can encapsulate fluorescein dyes as a nanoreactor, leading to the fast photobleaching of dyes.
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Ultraviolet light, temperature and pH triply responsive fluorescent sensors based on cellulose nanocrystals

RSC - Polym. Chem. latest articles - Thu, 05/03/2018 - 05:51
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00613J, PaperWeizhong Yuan, Chunyao Wang, Shize Lei, Jiangdi Chen, Shaorong Lei, Zhihong Li
Novel CNC-g-P(AzoC6MA-co-DMAEMA) fluorescent nanosensor was synthesized by the reaction of atom transfer radical copolymerization (ATRP) of AzoC6MA and DMAEMA with cellulose nanocrystals CNC modified with 2-bromoisobutyryl groups (CNC-Br) as the...
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Categories: Polymer Science News

Ultrafast and Efficient Aza- and Thiol-Michael Reactions on Polyester Scaffold with Internal Electron Deficient Triple Bonds

RSC - Polym. Chem. latest articles - Wed, 05/02/2018 - 03:02
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00485D, PaperHakan Durmaz, Umit Tunca, Ozgun Daglar, Muge Butun, Ufuk Saim Gunay, Gurkan Hizal
Polyester scaffold possessing electron deficient triple bonds in the main chain was prepared and utilized as a precursor for aza- and thiol-Michael addition reactions. A variety of primary and secondary...
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Categories: Polymer Science News

Design and Synthesis of AIE-active Polymeric H2S-donor with Capacity for Self-tracking

RSC - Polym. Chem. latest articles - Tue, 05/01/2018 - 21:59
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00548F, PaperLvhuan Lin, Herong Qin, Jianbing Huang, Hui Liang, Daping Quan, Jiang Lu
Design and synthesis of a new type of self-fluorescent polymeric H2S-donor was reported for the first time. Reversible addition-fragmentation chain transfer (RAFT) polymerization of 3-formyl-4-hydroxybenzyl methacrylate (FHMA) afforded a structurally...
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Categories: Polymer Science News

Correction: Photothermal Mobius aromatic metallapentalenofuran and its NIR-responsive copolymer

RSC - Polym. Chem. latest articles - Tue, 05/01/2018 - 06:46
Polym. Chem., 2018, Advance Article
DOI: 10.1039/C8PY90068J, Correction Open Access &nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Zhengyu Lu, Yuanting Cai, Yuanqing Wei, Qin Lin, Jiangxi Chen, Xumin He, Shunhua Li, Weitai Wu, Haiping Xia
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Hydrogen-transfer and condensation-addition polymerizations of acrylic acid

RSC - Polym. Chem. latest articles - Tue, 05/01/2018 - 04:44
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00271A, PaperTakuya Murase, Shin-ichi Matsuoka, Masato Suzuki
The hydrogen-transfer and condensation-addition polymerizations of acrylic acid (AA) to synthesize aliphatic polyesters have been investigated. We first performed catalyst screening for the hydrogen-transfer polymerization of AA and found that...
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Categories: Polymer Science News

Rational Designed Hyperbranched Azopolymer with Temperature, Photo and pH Responsive Behavior

RSC - Polym. Chem. latest articles - Mon, 04/30/2018 - 11:26
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00472B, PaperLiuying Sun, Fei Gao, Dingfeng Shen, Zhenghui Liu, Yuan Yao, Shaoliang Lin
A new azobenzene containing hyperbranched polymer, HPAzoAMAM-star-EG3, was efficiently synthesized through two-step Michael addition polymerization. The proposed polymer could self-assemble into uniform large compound micelles (LCMs) that featuring temperature, photo...
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Categories: Polymer Science News

Polypeptide gels incorporating the exotic functional aromatic amino acid 4-amino-L-phenylalanine

RSC - Polym. Chem. latest articles - Mon, 04/30/2018 - 10:26
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00427G, PaperTatsuo Kaneko, Mohammad Asif Ali, Ilya Captain, Pesach Perlin, Timothy J Deming
High-molecular-weight polypeptides with functional aromatic side chains, poly(4-amino-L-phenylalanine), 4APhe, were prepared by metal-initiated polymerization of the N[small alpha]-carboxyanhydride of the corresponding amino acid, which is a microbial derivative of phenylalanine. The...
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Categories: Polymer Science News

Frontiers of Macromolecular and Supramolecular Science symposia

RSC - Polym. Chem. latest articles - Mon, 04/30/2018 - 09:25

Polym. Chem., 2018, Advance Article
DOI: 10.1039/C8PY90063A, EditorialMichael L. Klein, Virgil Percec
Michael L. Klein and Virgil Percec introduce this Polymer Chemistry themed collection containing a selection of publications contributed by lecturers from the Frontiers of Macromolecular and Supramolecular Science symposia and friends of Christofor I. Simionescu.
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