Polymer Science News

pH-Sensitive Amphiphilic Block-Copolymers for Transport and Controlled Release of Oxygen

RSC - Polym. Chem. latest articles - Wed, 05/31/2017 - 05:25
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00679A, CommunicationYogesh Patil, Sarah Almahdali, Khanh B. Vu, Georgios Zapsas, Nikos Hadjichristidis, Valentin Rodionov
Saturated fluorocarbons, their derivatives and emulsions are capable of dissolving anomalously high amounts of oxygen and other gases. The mechanistic aspects of this remarkable effect remain to be explored experimentally....
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Compartmentalization of ABC triblock copolymer single-chain nanoparticle via coordination driven orthogonal self-assembly

RSC - Polym. Chem. latest articles - Fri, 05/26/2017 - 06:29
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00582B, PaperZhigang Cui, Hui Cao, Yi Ding, Pan Gao, Xinhua Lu, Yuanli Cai
We herein present supramolecular compartmentalization of ABC triblock copolymer single-chain nanoparticle (SCNP) using coordination-driven orthogonal intramolecular self-assembly. Well-defined ABC-type triblock copolymer was synthesized via visible light-mediated RAFT aqueous sequential block...
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Advantages and Limitations of Diisocyanates in Intramolecular Collapse

RSC - Polym. Chem. latest articles - Fri, 05/26/2017 - 06:29
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00712D, PaperFeng Wang, Charles E. Diesendruck
A comprehensive examination of the synthesis of single chain polymer nanoparticles (SCPNs) from a copolymer of methyl acrylate (MA) and 2-hydroxyethyl acrylate (HEA) via the intra-chain urethane formation by using...
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Categories: Polymer Science News

Mussel-inspired thermoresponsive polymers with tunable LCST by Cu(0)-LRP for the construction of smart TiO2 nanocomposites

RSC - Polym. Chem. latest articles - Fri, 05/26/2017 - 04:28
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00736A, PaperDonghao Wang, Shutong Guo, Qiang Zhang, Paul Wilson, David Haddleton
In this study, we report on the synthesis of thermoresponsive polymers with different microstructures, precisely tunable lower critical solution temperature (LCST) and terminal catechol anchors by copper (0) mediated living...
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Categories: Polymer Science News

Enzyme-Targeted Nanoparticles for Delivery to Ischemic Skeletal Muscle

RSC - Polym. Chem. latest articles - Wed, 05/24/2017 - 05:07
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00568G, PaperJessica Ungerleider, Jacquelin Kammeyer, Rebecca L Braden, Karen L Christman, Nathan Claude Gianneschi
The targeted delivery of enzyme-responsive nanoparticles to specific tissues can be a valuable, minimally invasive approach for imaging or drug delivery applications. ¬¬¬In this study, we show for the first...
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Chemoenzymatic synthesis of a peptide containing nylon monomer units for thermally processable peptide material application

RSC - Polym. Chem. latest articles - Tue, 05/23/2017 - 10:00
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00770A, CommunicationKenjiro Yazawa, Joan Gimenez-Dejoz, Hiroyasu Masunaga, Takaaki Hikima, Keiji Numata
Peptides exhibit no melting behavior during heating due to their strong intermolecular hydrogen bonds, which limits the use of peptides as a bulk material. Here, we added a melting point...
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Categories: Polymer Science News

Facile strategy for manipulating micellar size and morphology through intramolecular cross-linking of amphiphilic block copolymers

RSC - Polym. Chem. latest articles - Tue, 05/23/2017 - 06:59
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00646B, PaperRyoto Tanaka, Kodai Watanabe, Takuya Yamamoto, Kenji Tajima, Takuya Isono, Toshifumi Satoh
The effect of intramolecular cross-linking in an amphiphilic block copolymer (BCP) system was systematically investigated in terms of its thermal properties, critical micelle concentration (CMC), and aqueous self-assembly. A series...
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Polymer Side-Chain Elucidating Thermochromism of Benzodithiophene-Dithiophenylacrylonitrile Copolymers -Polymer Solubility Correlation of Thermochromism and Photovoltaic Performance

RSC - Polym. Chem. latest articles - Tue, 05/23/2017 - 06:59
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00338B, PaperChin-Ti Chen, Hung-Yang Chen, Chiao-Wen Lin, Chao-Tsen Chen, Jan Golder, Yu-Bing Lan, Juen-Kai Wang
Nine pBCNx polymers based on donor--acceptor benzo[1,2-b:4,5-b']dithiophene-(E)-2,3-di(thiophen-2-yl)acrylonitrile main-chain structure and n-octyl/2-ethylhexyl as the side-chain substituents have been designed and synthesized. The thermochromism of pBCNx polymers have been carefully examined in...
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Selenide Borohydride Reaction as A Versatile Plat-form for the Straightforward Preparation of Selenide-containing Topological Polymers

RSC - Polym. Chem. latest articles - Tue, 05/23/2017 - 06:59
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00676D, CommunicationChunlai Ding, Caiwei Fan, Xiangqiang Pan, Zhengbiao Zhang, Jian Zhu, Xiulin Zhu
A method for preparing selenide-containing polymers with desired topologies is established based on the reaction of selenide-functionalized borohydride exchange resin with end-functionalized polymers that shows advantages such as wide structural...
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Categories: Polymer Science News

Thiophene-Benzothiadiazole Based D-A1-D-A2 Type Alternating Copolymers for Polymer Solar Cells

RSC - Polym. Chem. latest articles - Tue, 05/23/2017 - 05:58
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00696A, PaperGururaj P. Kini, Quoc Viet Hoang, Chang Eun Song, Sang Kyu Lee, Won Suk Shin, Won-Wook So, Mohammad Afsar Uddin, Han Young Woo, Jong-Cheol Lee
A series of D-A1-D-A2 type regioregular copolymers based on difluorobenzothiadiazole (DFBT) and dialkoxybenzothiadiazole (ROBT) structures was synthesized. The copolymers were prepared with different alkyl chain lengths and branching point positions....
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Dark Current Reduction Strategies Using Edge-on Aligned Donor Polymers for High Detectivity and Responsivity Solution-processed Organic Photodetectors

RSC - Polym. Chem. latest articles - Tue, 05/23/2017 - 05:58
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00497D, PaperSeung Hun Eom, So Youn Nam, Hee Jin Do, Jaemin Lee, Sangho Jeon, Tae Joo Shin, In Hwan Jung, Sung Cheol Yoon, Changjin Lee
We synthesized the conjugated polymers PT2OBT, PVT2OBT, and PFBT2OBT for organic photodetecting devices. An octyloxy benzothiadiazole (OBT) moiety was used as a weak electron-accepting building block in the polymer system...
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Aromatic diselenide crosslinkers to enhance the reprocessability and self-healing of polyurethane thermosets

RSC - Polym. Chem. latest articles - Mon, 05/22/2017 - 09:36
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00448F, PaperHaritz Sardon, Jian Zhu, Lourdes Irusta, David Mecerreyes, Xianwei An, roberto hernandez, nora aramburu, Fernando Ruiperez, Jon M. Matxain, Xiangqiang Pan
Dynamic structures containing polymers are considered a new class of polymeric materials with very attractive properties, since they can behave as thermosets at room temperature but at the same time...
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Kinetic and Mechanistic Investigation for Copolymerization of CO2 and Cyclohexene Oxide Catalyzed by Trizinc Complexes

RSC - Polym. Chem. latest articles - Mon, 05/22/2017 - 04:30
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00403F, PaperYonghang Xu, Limiao Lin, Chun-Ting He, Jiaxiang Qin, Zhong Li, Shuanjin Wang, Min Xiao, Yuezhong Meng
The trizinc complexes Zn3(OAc)4(Ln)2, 1a and 1b, which were coordinated with Schiff-base ligands via simple and economical method, have been examined to be highly effective and efficient toward the copolymerization...
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A general route to chiral nanostructures from helical polymers: P/M switch via dynamic metal coordination

RSC - Polym. Chem. latest articles - Fri, 05/19/2017 - 16:06
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00561J, PaperRicardo Riguera, Felix Freire, Sandra Arias, Manuel Nunez-Martinez, Emilio Quinoa
A general method for the conversion of a polyphenylacetylene into its P or M helically oriented polymer, and into their corresponding P/M helical nanoparticles via dynamic metal coordination is presented....
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Main chain copolysiloxanes with terthiophene and perylenediimide units: synthesis, characterization and electrical memory

RSC - Polym. Chem. latest articles - Wed, 05/17/2017 - 08:22

Polym. Chem., 2017, Advance Article
DOI: 10.1039/C7PY00418D, PaperZhen Chen, Tingjie Zhang, Yi Zhang, Zhongjie Ren, Jianming Zhang, Shouke Yan
A main chain donor-acceptor copolysiloxane PBIClSi-alt-PTSi for resistor type memory has been designed and synthesized. The PBIClSi-alt-PTSi possesses high thermal stability and shows nonvolatile write-once-read many times (WORM) memory characteristics.
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Photoresponsive AA/BB supramolecular polymers comprised of stiff-stilbene based guests and bispillar[5]arenes

RSC - Polym. Chem. latest articles - Wed, 05/17/2017 - 07:22
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00326A, PaperYuan Wang, Cai-Li Sun, Li-Ya Niu, Li-Zhu Wu, Chen-Ho Tung, Yu-Zhe Chen, Qing-Zheng Yang
We report the facile preparation of photoresponsive AA/BB supramolecular polymers comprised of E-stiff-stilbene bridged guest (E-G) and the disulfide-bridged bispillar[5]arene (H). The different assembly behaviours of Z-G and E-G with...
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New copper (I) complex based initiating systems in redox polymerization and comparison with amine/benzoyl peroxide reference

RSC - Polym. Chem. latest articles - Wed, 05/17/2017 - 06:21
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00726D, PaperJacques Lalevee, Celine Dietlin, Fabrice Morlet-Savary, Jean Pierre Fouassier, Didier Gigmes, Frederic Dumur, Anthony Kermagoret, Patxi Garra, Assi Mousawi
Novel copper complex based initiating systems for redox free radical polymerization (FRP) of methacrylate resins under mild conditions are proposed. Remarkably, the FRP performance of the Cu(I)/Ascorbic Acid (Vitamin C...
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Synthesis and characterization of two isomeric dithienopyrrole series and the corresponding electropolymers

RSC - Polym. Chem. latest articles - Wed, 05/17/2017 - 06:21
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00764G, PaperPeter Baeuerle, Sebastian Foertsch
Synthesis and electropolymerization of 4H-dithieno[3,2-b:2',3'-d]pyrrole (DTP), isomeric 7H-dithieno-[2,3-b:3',2'-d]pyrrole (iso DTP), and their N-functionalized analogues (R=hexyl, 2-ethylhexyl, 2-hexyldecyl, phenyl, tert butyloxycarbonyl, or benzoyl) are presented. Changing the relative positions of the...
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Stirring rate provides dramatic acceleration of the ultrafast interfacial SET-LRP in biphasic acetonitrile-water mixtures

RSC - Polym. Chem. latest articles - Wed, 05/17/2017 - 06:21
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00659D, PaperRyan L. Jezorek, Mojtaba Enayati, Rauan Smail, Janis Lejnieks, Silvia Grama, Michael Monteiro, Virgil Percec
The influence of stirring rate on the SET-LRP of methyl acrylate and n-butyl acrylate catalyzed with Cu(0) wire in methanol and with Cu(0) generated by the reduction of Cu(II)Br2 with...
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Multicellular tumor spheroids: a relevant 3D model for in vitro preclinical investigation of polymer nanomedicines

RSC - Polym. Chem. latest articles - Wed, 05/17/2017 - 06:21
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00559H, Review ArticleGianpiero Lazzari, Patrick Couvreur, Simona Mura
Application of nanotechnology to medicine, usually termed as nanomedicine, has given a crucial impulse to the design of various drug-loaded nanocarriers driven by the idea to overcome the limits associated...
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