Polymer Science News

Synthesis of aliphatic polycarbonates with a tuneable thermal response

RSC - Polym. Chem. latest articles - Mon, 03/27/2017 - 13:27
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00358G, PaperAnthony Thomas, Paula Kuroishi, Maria Perez-Madrigal, Andrew Whittaker, Andrew P Dove
Thermally-responsive polymers have been widely studied, however access to materials in which both the thermal response can be tuned and in which the backbone is ultimately biodegradable is limited. To...
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Core cross-linked double hydrophilic block copolymer micelles based on multiple hydrogen-bonding interactions

RSC - Polym. Chem. latest articles - Mon, 03/27/2017 - 13:27
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00210F, PaperJingsi Chen, Bin Yan, Xiaogang Wang, Qingxue Huang, Thomas Thundat, Hongbo Zeng
A facile route for the preparation of core cross-linked polymeric micelles via self-complementary multiple hydrogen bonds was developed. Double hydrophilic block copolymers of poly(ethylene glycol)-b-poly(N-isopropylacrylamide) (PEG-b-PNIPAm), with 2-ureido-4[1H]pyrimidinone (UPy) functionality...
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"Click" Functionalization of Dual Stimuli-responsive Polymer Nanocapsules for Drug Delivery System

RSC - Polym. Chem. latest articles - Mon, 03/27/2017 - 13:27
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00161D, PaperWen Jing Yang, Tingting Zhao, Peng Zhou, Simou Chen, Yu Gao, Lijun Liang, Xiaodong Wang, Lian-Hui Wang
Surface decoration of nano-carriers is of great importance in targeted drug delivery system. However, the surface coupling of functional ligands to nano-carriers usually involves sophisticated conjugation chemistry, such as carbodiimides-mediated...
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Categories: Polymer Science News

Versatile oligomers and polymers from flavonoids - a new approach to synthesis

RSC - Polym. Chem. latest articles - Mon, 03/27/2017 - 07:25

Polym. Chem., 2017, Advance Article
DOI: 10.1039/C7PY00325K, PaperSusan Oliver, James M. Hook, Cyrille Boyer
Antioxidant oligomers and polymers have been prepared from two flavonoids, catechin and quercetin, using a new facile technique.
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Sustainable polyvinyl acetals from bioaromatic aldehydes

RSC - Polym. Chem. latest articles - Fri, 03/24/2017 - 09:52

Polym. Chem., 2017, Advance Article
DOI: 10.1039/C7PY00205J, PaperMayra Rostagno, Steven Shen, Ion Ghiviriga, Stephen A. Miller
Water-degradable polyvinyl acetals with high glass transition temperatures (114-157 [degree]C) were made via acetalization of polyvinyl alcohol (PVA) with bioaromatic aldehydes.
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Visible-Light-Induced Living Radical Polymerization Using in-situ Bromine-Iodine Transformation as Internal Boost

RSC - Polym. Chem. latest articles - Thu, 03/23/2017 - 23:48
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00366H, PaperXiao-Dong Liu, Qinghua Xu, Lifen Zhang, Zhen-Ping Cheng, Xiulin Zhu
A facile and effective visible-light-induced living radical polymerization (LRP) system was successfully developed at room temperature using typical alkyl bromides (such as ethyl [small alpha]-bromophenylacetate (EBPA), 2-bromopropanenitrile (BPN)) as the initiator...
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Correction: Synthesis of midblock-quaternized triblock copolystyrenes as highly conductive and alkaline-stable anion-exchange membranes

RSC - Polym. Chem. latest articles - Thu, 03/23/2017 - 10:42
Polym. Chem., 2017, Advance Article
DOI: 10.1039/C7PY90053H, Correction Open Access &nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Meng Zhu, Min Zhang, Quan Chen, Yanxia Su, Zhijie Zhang, Lei Liu, Yiguang Wang, Linan An, Nanwen Li
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Photosensitive polydimethylsiloxane networks for adjustable-patterned films

RSC - Polym. Chem. latest articles - Thu, 03/23/2017 - 05:41
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00300E, PaperRachid Jellali, Michael Alexandre, Christine Jerome
Polydimethylsiloxane (PDMS) bearing photoreactive coumarin groups have been synthesized by amidation of a coumarin acid chloride derivative with various amine-functionalized PDMS. Under exposure to UV light having a wavelength above...
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Bis(2-oxo-7-azaindolin-3-ylidene)benzodifuran-dione-Based Donor-Acceptor Polymers for High-Performance n-type Field-Effect Transistors

RSC - Polym. Chem. latest articles - Wed, 03/22/2017 - 09:35
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00295E, PaperGuobing Zhang, Yanrong Dai, Longzhen Qiu, Kilwon Cho, Feng Ge, Hansol Lee, Kyu Chan Song
Two donor-acceptor (DA) conjugated polymers, PBABDF-DT and PBABDF-TVT, were synthesized using a strongly electron-deficient unit, (3E,7E)-3,7-bis(6-bromo-1-(4-decyltrtradecyl)-2-oxo-7-azaindolin-3-ylidene)benzo[1,2-b:4,5-b']difuran-2,6(3H,7H)-dione (BABDF) as the acceptor, and dithiophene and (E)-2-(2-(thiophen-2-yl)vinyl)thiophene as the donor units. Both polymers...
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The influence of branching on the Kumada catalyst transfer condensative polymerization of 3-alkylthiophenes

RSC - Polym. Chem. latest articles - Wed, 03/22/2017 - 09:35
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00255F, PaperLize Verheyen, Birgitt Timmermans, Guy Koeckelberghs
To study the influence of branching of the side chain on the Kumada catalyst transfer condensative polymerization (KCTCP) of 3-alkylthiophenes, a new, severely branched precursor monomer, 2-bromo-5-iodo-3-(2-octyldodecyl)thiophene, was designed. The...
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Modulating the Polyolefin Properties through the Incorporation of Nitrogen-Containing Polar Monomers

RSC - Polym. Chem. latest articles - Wed, 03/22/2017 - 05:34
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00127D, PaperYinna Na, Dan Zhang, Changle Chen
In this work, ethylene copolymerization and terpolymerization reactions with some nitrogen-containing monomers were investigated using the [small alpha]-diimine palladium and the phosphine-sulfonate palladium catalysts. In the [small alpha]-diimine palladium system, ligand sterics...
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Phosphorylcholine Micelles Decorated by Hyaluronic Acid for Enhancing Antitumor Efficiency

RSC - Polym. Chem. latest articles - Tue, 03/21/2017 - 08:28
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C6PY02032A, PaperShuai Li, Yuanyuan Cai, Jun Cao, Mengtan Cai, Yuanwei Chen, Xianglin Luo
The micelles with the surface of phosphatidyl choline structure have many advantages such as good biocompatibility, high cancer uptake and so on. In this study, we developed hyaluronic acid-coated phosphatidyl...
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Categories: Polymer Science News

Effect of Polymer Topology on non-covalent Polymer-Protein Complexation: Miktoarm versus Linear mPEG-poly(glutamic acid) Copolymers

RSC - Polym. Chem. latest articles - Tue, 03/21/2017 - 07:28
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00169J, PaperAlejandro Nieto-Orellana, Marco Di Antonio, Claudia Conte, Franco Falcone, Cynthia Bosquillon, Nick Childerhouse, Giuseppe Mantovani, Snjezana Snow Stolnik
Non-covalent polymer-protein conjugation is emerging as a potential route to improve pharmacokinetics and pharmacodynamics of protein therapeutics. In this study, a family structurally related block copolymers of mPEG2k - poly(glutamic...
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Categories: Polymer Science News

Quantitatively Monitoring Polymer Chain Growth and Topology Formation Based on Monodisperse Polymers

RSC - Polym. Chem. latest articles - Tue, 03/21/2017 - 04:26
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00322F, PaperZimu Wang, Zhihao Huang, Nianchen Zhou, Xue-hui Dong, Zhengbiao Zhang, Xiulin Zhu
In this work, for the first time, polymer chain growth and topology formation was monitored and quantitatively evaluated using maleimide-based fluorogenic probe based on photo-induced electron transfer (PET) mechanism. A...
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Categories: Polymer Science News

Glycan-decorated HPMA copolymers as high-affinity lectin ligands

RSC - Polym. Chem. latest articles - Tue, 03/21/2017 - 04:26
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00271H, PaperPavla Bojarova, Petr Chytil, Barbora Mikulova, Ladislav Bumba, Rafal Konefal, Helena Pelantova, Jana Krejzova, Kristina Slamova , Lucie Petraskova, Lenka Kotrchova, Josef Cvacka, Tomas Etrych, Vladimir Kren
Novel conjugates of N-(2-hydroxypropyl) methacrylamide (HPMA) copolymers tethered with chitooligosaccharidic epitopes of varying length were shown to be potent ligands of a model lectin, wheat germ agglutinin (WGA). The azide-functionalized...
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Copolymerization of Norbornene and Butyl Methacrylate at Elevated Temperarure by Single Centre Nickel Catalyst Bearing Bulky Bis([small alpha]-diimine) Ligand with Strong Electron-Withdrawing Group

RSC - Polym. Chem. latest articles - Mon, 03/20/2017 - 14:17
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00081B, PaperXiaohui He, Yingjiao Deng, Zijie Wang, Xiong Jiang, Zhilong Han, Yingping Yang, Defu Chen
Three dimensional geometry bulky a-diimine ligand with strong electron-withdrawing groups (-NO2), 9,10-dihydro-9,10-ethanoanthracene-11,12-di(p-PhNO2)imine(L), and corresponding single nickel catalyst (NiL2Br2) were synthesized and the molecular structure of NiL2Br2 catalyst was confirmed by...
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One-pot synthesis of pH-responsive hyperbranched polymer-peptide conjugates with enhanced stability and loading efficiency for combined cancer therapy

RSC - Polym. Chem. latest articles - Mon, 03/20/2017 - 05:13
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00101K, PaperDong-Bing Cheng, Pei-Pei Yang, Yong Cong, Fu-Hua Liu, Zeng-Ying Qiao, Hao Wang
Nanoparticles as drug delivery systems had received significant attentions due to their merits such as prolonged circulation time and passive targeting to the tumor site. Polymer-peptide conjugates (PPCs) intend to...
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Categories: Polymer Science News

A cellulose-based chiral fluorescent sensor for aromatic nitro compounds with central, axial and planar chirality

RSC - Polym. Chem. latest articles - Mon, 03/20/2017 - 04:12
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00285H, PaperTomoyuki Ikai, Daisuke Suzuki, Ken-ichi Shinohara, Katsuhiro Maeda, Shigeyoshi Kanoh
Chiral sensing using fluorescent responses as output signals is an attractive technique for enantiodifferentiation in terms of its rapidity, high sensitivity, simplicity and high-throughput ability. However, because the reported sensors...
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Categories: Polymer Science News

Metal-containing polymers bearing pendant nickel(II) complexes of Goedken's macrocycle

RSC - Polym. Chem. latest articles - Fri, 03/17/2017 - 11:41

Polym. Chem., 2017, Advance Article
DOI: 10.1039/C7PY00259A, PaperJoseph A. Paquette, Amir Rabiee Kenaree, Joe B. Gilroy
The design, synthesis, and characterization of polymers bearing pendant nickel(II) complexes of Goedken's macrocycle are described.
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A New Fluoropyrido[3,4-b]pyrazine Based Polymer for Efficient Photovoltaics

RSC - Polym. Chem. latest articles - Fri, 03/17/2017 - 06:37
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00349H, PaperYingping Zou, tao wang, Lihui jiang, Jun Yuan, liuliu feng, Zhi-Guo Zhang, Yongfang Li, Jiannan Xiang
In order to improve the photovoltaic performance of pyrido[3,4-b]pyrazine (PP)-based polymer, a new fluoropyrido[3,4-b]pyrazine based D-A type polymer (BDT-S-fPP) was synthesized. The optical, electrochemical and photovoltaic properties were well investigated....
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