Polymer Science News

Secondary structures of synthetic polypeptide polymers

RSC - Polym. Chem. latest articles - Tue, 11/14/2017 - 04:13
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01725A, Review ArticleColin Bonduelle
Synthetic peptide-based polymers represent a unique class of macromolecules able to mimic natural proteins properties in material sciences since 1) they present the same macromolecular backbone than proteins, 2) they...
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Phosphine-sulfonate-based Nickel Catalysts: Ethylene Polymerization and Copolymerization with Polar-functionalized Norbornenes

RSC - Polym. Chem. latest articles - Tue, 11/14/2017 - 04:13
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01661A, PaperGuangzhi Song, Wen-Min Pang, Weimin Li, Min Chen, Changle Chen
In this contribution, the effect of substitution on biaryl-based phosphine-sulfonate nickel catalysts is investigated. A series of [-(P,O)-2-(P-PhAr)-1-benzenesulfonato]NiPh(PPh3) nickel complexes (Ni-OMe, Ar = 2-[2',6'-(OMe)2-C6H3]-C6H4; Ni-H, Ar = 2-(C6H5)-C6H4; Ni-OiPr, Ar...
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Synthesis of Linear and Star Poly(ε-caprolactone) with Controlled and High Molecular Weights via Cyclic Trimeric Phosphazene Base Catalyzed Ring-Opening Polymerization

RSC - Polym. Chem. latest articles - Mon, 11/13/2017 - 04:34
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01673E, PaperHuaike Li, Na Zhao, Chuan-Li ren, Shaofeng Liu, Zhibo Li
Poly(ε-caprolactone) with low catalyst loading and high molecular weights are highly desired considering their practical applications. In this work, a cyclic trimeric phosphazene base (CTPB) has been developed and applied...
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Categories: Polymer Science News

Visible-Light Responsive Hydrogen-Bonded Supramolecular Polymers Based on ortho-Tetrafluorinated Azobenzene

RSC - Polym. Chem. latest articles - Mon, 11/13/2017 - 04:34
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01612C, PaperKang-Da Zhang, Tian-Guang Zhan, Meng-Di Lin, Jie Wei, Li-juan Liu, Meng-Yan Yun, Lin Wu, Si-Tai Zheng, Huan-Huan Yin, Lichun Kong
Novel visible-light responsive hydrogen-bonded supramolecular polymers have been successfully constructed by using a linear molecule, which consists of two ureido-pyrimidinone (UPy) moieties connected by a photochromic otho-tetrafluorinated azobenzene (TFAB) linker....
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Fabrication of multifunctional fluorescent organic nanoparticles with aggregation-induced emission feature through photo-initiated RAFT polymerization for biological imaging and drug delivery applications

RSC - Polym. Chem. latest articles - Mon, 11/13/2017 - 04:34
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01563A, PaperXiaoyong Zhang, Ruming Jiang, Meiying Liu, Qiang Huang, Hongye Huang, Qing Wan, Yuanqing Wen, Jianwen Tian, Qian-Yong Cao, Yen Wei
Fluorescence organic nanoparticles (FONs) based on an aggregation-induced emission (AIE) dye have recently received increasing interest owing to their unique optical properties, water dispersibility and biocompatibility. However, fabrication of multifunctional...
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Categories: Polymer Science News

Self-assembled core-shell-corona multifunctional non-viral vector with AIE property for efficient hepatocytes targeting gene delivery

RSC - Polym. Chem. latest articles - Fri, 11/10/2017 - 05:10
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01520H, PaperXiao-Qi Yu, Bing Wang, Ping Chen, Ji Zhang, Xiao-Chuan Chen, Yan-Hong Liu, Zheng Huang, Qing-Ying Yu, Ju-Hui Zhang, Wei Zhang, Xi Wei
With the aim to develop novel multifunctional gene delivery system that may overcome the common barriers in gene transfection, two amphiphilic molecules with tetraphenyl ethylene (TPE) as hydrophobic moiety and...
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Categories: Polymer Science News

Synthesis of Block Copolymers by Mechanistic Transformation from Photoinitiated Cationic Polymerization to RAFT Process

RSC - Polym. Chem. latest articles - Fri, 11/10/2017 - 05:10
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01707C, CommunicationAntonino Puglisi, Eljesa Murtezi, Gorkem Yilmaz, Yusuf Yagci
A novel synthetic strategy for the synthesis of block copolymer based on mechanistic transformation from photoinitiated cationic polymerization to radical addition fragmentation transfer polymerization is presented. The process yielded polytetrahydrofuran-b-poly(methyl...
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Categories: Polymer Science News

Recyclable and Efficient Polyurethane-Ir Catalysts for Direct Borylation of Aromatic Compounds

RSC - Polym. Chem. latest articles - Thu, 11/09/2017 - 05:35
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01509G, PaperAkihiro Kimura, Haruka Hayama, Jun-ya Hasegawa, Hassan Nageh, Yue Wang, Naofumi Naga, Mayumi Nishida, Tamaki Nakano
Four polyurethanes having 2,2'-bipyridyl moieties incorporated in the main chain were synthesized as novel polymer ligand for Ir(I)-catalyzed direct borylation of aromatic compounds. The polyurethanes were insoluble in common organic...
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Recent development of functional aliphatic polycarbonates in the construction of amphiphilic polymers

RSC - Polym. Chem. latest articles - Thu, 11/09/2017 - 04:27
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01815K, Review ArticleYu Dai, Xiaojin Zhang
Amphiphilic polymers could form nanostructures by self-assembly, thus attract a significant attention from the scientists as the development of synthetic methodology and material science. In the construction of amphiphilic polymers,...
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Categories: Polymer Science News

A photocatalyst immobilized on fibrous and porous monolithic cellulose for heterogeneous catalysis of controlled radical polymerization

RSC - Polym. Chem. latest articles - Thu, 11/09/2017 - 04:27

Polym. Chem., 2018, Advance Article
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

Photoinduced Fe-mediated Atom Transfer Radical Polymerization in Aqueous Media

RSC - Polym. Chem. latest articles - Wed, 11/08/2017 - 05:59
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01762F, PaperBian Chao , Yin-Ning Zhou, Guo Jun-Kang , Zheng-Hong Luo
Photoinduced atom transfer radical polymerization with Fe catalyst was successfully performed in aqueous media for the first time. Three water-soluble ligands [i.e., tetrabutylammonium bromide (TBABr), tris[2-(2-methoxyethoxy)ethyl]amine (TDA), and triphenylphosphine-3,3[prime or minute],3[double prime]- trisulfonic...
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Photopolymerization of thick films and in shadow areas: A review for the access to composites

RSC - Polym. Chem. latest articles - Wed, 11/08/2017 - 04:57
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01778B, Review ArticleJacques Lalevee, Celine Dietlin, Fabrice Morlet-Savary, Jean Pierre Fouassier, Frederic Dumur, Didier Gigmes, Patxi Garra
The photopolymerization processes are currently associated with thin samples for which the light penetration is good enough to activate the photoinitiator or the photoinitiating system for the entre sample's thickness....
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Categories: Polymer Science News

Precise Synthesis of Thermoresponsive Polyvinylphosphonate-Biomolecule Conjugates via Thiol-Ene Click Chemistry[dagger]

RSC - Polym. Chem. latest articles - Wed, 11/08/2017 - 04:57
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01796K, PaperChristina Schwarzenbock, Andreas Schaffer, Philipp Pahl, Peter J. Nelson, Ralf Huss, Bernhard Rieger
A polymerisation type only recently attracting notice is the rare earth metal-mediated group transfer polymerisation (REM-GTP). This living-type polymerisation is able to conquer the limitations faced by classical anionic and...
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Categories: Polymer Science News

High Molecular Weight Cyclic Polysiloxane from Organocatalytic Zwitterionic Polymerization of Constrained Spirocyclosiloxanes

RSC - Polym. Chem. latest articles - Wed, 11/08/2017 - 04:57
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01499F, CommunicationChunyan Wu, Jianyi Yu, qiaosheng li, Yuzhou Liu
Cyclic polymers are macromolecules which exhibit interesting topological structures and unique properties. Cyclic polysiloxane formation by organic zwitterionic polymerization of cyclic siloxanes offers the advantage of simple process, no-metal residue...
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Categories: Polymer Science News

pH, glutathione dual-triggered supramolecular assemblies as synergistic and controlled drug release carrier

RSC - Polym. Chem. latest articles - Wed, 11/08/2017 - 04:57
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01644A, PaperYang Kang, Xin Ju, Lu Wang, Lisheng Ding, Guiting Liu, Sheng Zhang, Bang-Jing Li
A pH and glutathione (GSH) dual bio-relevant triggered supramolecular system is constructed through the non-covalent host-guest interactions between the adamantane (ADA) on camptothecin (CPT) and [small beta]-cyclodextrin ([small beta]-CD) on the side...
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Categories: Polymer Science News

Selective recognition of biologically important anions using a diblock polyfluorene-polythiophene conjugated polyelectrolyte

RSC - Polym. Chem. latest articles - Wed, 11/08/2017 - 04:57

Polym. Chem., 2017, Advance Article
DOI: 10.1039/C7PY01478C, PaperNiamh Willis-Fox, Andrea Gutacker, Michelle P. Browne, Amir R. Khan, Michael E. G. Lyons, Ullrich Scherf, Rachel C. Evans
Fluorescence detection of nucleotide phosphates with a polyfluorene-polythiophene diblock copolymer is demonstrated, accompanied by determination of the sensor mechanism.
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The Hantzsch Reaction in Polymer Chemistry: synthesis and tentative application

RSC - Polym. Chem. latest articles - Tue, 11/07/2017 - 04:22
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01718A, MinireviewHaibo Wu, Zhiming Wang, Lei Tao
The Hantzsch reaction, one of the oldest and most famous multicomponent reactions (MCRs), has been introduced into polymer chemistry recently as an efficient coupling tool to prepare multifunctional polymers. In...
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Categories: Polymer Science News

Selective visualization of endogenous hydrogen sulfide in lysosomes via using aggregation induced emission dots

RSC - Polym. Chem. latest articles - Tue, 11/07/2017 - 04:22
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01696D, PaperPeisheng Zhang, Xianghong Yong, Hong Wang, Mao lin Yu, Yong Gao, Ringin Zeng, Yun Fei Long, Jian Chen
The development of novel fluorescent probes for selective detection of endogenous hydrogen sulfide (H2S) in lysosomes is imperative for elucidating its functions associated with disease. Nevertheless, the reported fluorescent probes...
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Categories: Polymer Science News

Selective oxidation of cellulose, mediated by N-hydroxyphthalimide, under metal-free environment

RSC - Polym. Chem. latest articles - Mon, 11/06/2017 - 06:12
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01710C, PaperSergiu Coseri, Gabriela Biliuta, Bogdan Simionescu
Three types of cellulosic samples, including microcrystalline, never-dried sulfite pulp, and Cellets, were selected to test the oxidative capacity of a new oxidation protocol involving the redoubtable N-hydroxyphthalimide (NHPI) catalyst....
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Categories: Polymer Science News

Double Thermoresponsive Pentablock Copolymers: Synthesis by One-Pot RAFT Polymerization and Self-Assembly in Aqueous Solutions

RSC - Polym. Chem. latest articles - Mon, 11/06/2017 - 03:08
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01546A, PaperPovilas Radzevicius, Ricardas Makuska, Tania Krivorotova, Medeina Steponaviciute
In this study, well-defined hydrophilic pentablock copolymers with iterative blocks of poly(2-hydroxyethyl methacrylate) (pHEMA) and poly(2-(dimethylamino)ethyl methacrylate) (pDMAEMA) were synthesized by three-step one-pot RAFT polymerization in the presence of difunctional...
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