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ROS-responsive poly(ε-caprolactone) with pendent thioether and selenide motifs

Wed, 06/20/2018 - 23:56
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00620B, PaperLi Yu, Mei Zhang, Fusheng Du, Zichen Li
The chalcogen-containing polyesters represent an important branch of reactive oxygen species (ROS)-responsive biodegradable polymers. Herein, we report the synthesis and oxidation properties of three ROS-responsive poly(ε-caprolactone) (PCL)-type polyesters. Three new...
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Categories: Polymer Science News

Synthesis of Aromatic-doped Polycaprolactone with Tunable Degradation Behavior

Wed, 06/20/2018 - 09:42
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00374B, PaperYawei Sun, Qiuyan Wang, Shuying Zhang, Hao Li, Jinli Zhang, Daqing Li, Wei Li
A novel aromatic-doped polycaprolactone (Aro-PCL) was synthesized through a facile PCL aminolysis-condensation polymerization, and assessed focusing on the dynamic aggregation and crystalline microdomains associated with the in vitro degradation property,...
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Categories: Polymer Science News

Kinetics of Radical Copolymerization of Vinylidene fluoride with tert-butyl 2-trifluoromethyl Acrylate: A Suitable Pair for the Synthesis of Alternating Fluorinated Copolymers

Wed, 06/20/2018 - 06:35
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00681D, PaperPanagiotis Falireas, Mohammad Wehbi, Alikassem Alaaeddine, Bruno Ameduri
The kinetics of radical copolymerization of vinylidene fluoride (VDF) with tert-butyl 2-trifluoromethacrylate (MAF-TBE) initiated by tert-butyl peroxypivalate in solution is presented. The evolutions of the microstructure and molecular weights of...
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Categories: Polymer Science News

A 1,2,3-triazolyl based conjugated microporous polymer for sensitive detection of p-nitroaniline and Au nanoparticles deposition

Wed, 06/20/2018 - 03:32
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00702K, PaperFeng Wei, Xinyi Cai, Junqi Nie, Feiyi Wang, Cuifen Lu, Guichun Yang, Zuxing Chen, Chao Ma, Yuexing Zhang
A 1,2,3-triazolyl based fluorescent conjugated microporous polymer PTPTB was synthesized through FeCl3 promoted oxidative coupling of 1,3,5-tris(1-(3,5-di(thiophen-2-yl)phenyl)-1H-1,2,3-triazol-4-yl)benzene. The resulting product have a BET surface area of 808.6 m2 g-1 and...
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Categories: Polymer Science News

Unraveling the Stress Effects on Optical Properties of Stretchable Rod-Coil Polyfluorene-Poly(n-butyl acrylate) Block Copolymer Thin Films

Wed, 06/20/2018 - 01:31
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00763B, PaperHui-Ching Hsieh, Chih-Chien Hung, Kodai Watanabe, Jung-Yao Chen, Yu-Cheng Chiu, Takuya Isono, Yun-Chi Chiang, Renji R. Reghu, Toshifumi Satoh, Wen-Chang Chen
We report the synthesis, morphology, and photophysical properties of new conjugated rod-coil block copolymers consisting of poly[2,7-(9,9-dihexylfluorene)] (PF) conjugated rods and soft poly(n-butyl acrylate) (PBA) coils for stretchable light-emitting device...
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Categories: Polymer Science News

Post-Synthetic Functionalization of a Polysulfone Scaffold with Hydrazone-Linked Functionality

Tue, 06/19/2018 - 14:22
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00631H, PaperDylan W Domaille, Dillon Love, Xilal Rima, Albert Harguindey-Sanchez, Benjamin Fairbanks, David Klug, Jennifer N Cha, Christopher N Bowman
The synthesis, characterization, and post-synthetic functionalization of a readily functionalized step-growth linear polymer derived from divinyl sulfone (DVS) and tert-butylcarbazate (TBC) is presented. Construction of this atom-economic polymer under thermal...
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Categories: Polymer Science News

Investigation of Green and Sustainable Solvents for Direct Arylation Polymerization (DArP)

Tue, 06/19/2018 - 12:19
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00749G, PaperRobert Pankow, Liwei Ye, Nemal Gobalasingham, Neda Salami, Sanket Samal, Barry Thompson
Direct arylation polymerization (DArP) is an emerging method for conjugated polymer synthesis. It alleviates typical synthetic routes from toxic, hazardous materials, such as pyrophorphoric organolithium or highly-toxic stannane reagents. The...
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Categories: Polymer Science News

Light-Mediated One-Pot Synthesis of ABC Triblock Copolymer in Aqueous Solution via RAFT and the Effect of pH on Copolymer Self-Assembly

Mon, 06/18/2018 - 09:55
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00775F, PaperSudhina Guragain, Juan Perez-Mercader
A diblock copolymer showing pH-dependent water solubility is chain extended with hydrophobic third block to get ABC type amphiphilic triblock copolymer of poly(ethylene oxide-b-2-(dimethylamino)ethyl methacrylate-b-2-hydroxypropyl methacrylate). The block copolymer synthesis...
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Categories: Polymer Science News

Sustainable Synthesis and Characterization of Bisphenol A-Free Polycarbonate from Six-Membered Dicyclic Carbonate

Mon, 06/18/2018 - 06:54
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00676H, PaperPengrui Wang, Ji Hoon Park, Mahmoud Sayed, Tae Sun Chang, Amy Moran, Shaochen Chen, Sang-Hyun Pyo
Bisphenol A, (2,2-bis(4-hydroxyphenyl)propane, BPA)-free polycarbonate (PC) from six-membered di-cyclic carbonate, di-trimethylolpropane di-cyclic carbonate (DTMPC) was developed as a new type of PC by ring opening homo-polymerization. The polymerization was controlled...
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Categories: Polymer Science News

Polarized Olefins as Enabling (Co)Catalysts for the Polymerization of [gamma]-Butyrolactone

Mon, 06/18/2018 - 05:52
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00784E, PaperPatrick Walther, Wolfgang Frey, Stefan Naumann
Suitable methods to polymerize [gamma]-butyrolactone (GBL) by ring-opening polymerization (ROP) have emerged only recently. In view of the exciting properties of the corresponding aliphatic polyester, organocatalytic or simple metal-based catalyst...
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Categories: Polymer Science News

Polyacrylic esters with "One-is-enough" effect and investigation of their AIEE behaviours and cyanide detection in aqueous solution

Mon, 06/18/2018 - 00:47
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00705E, PaperHaibo Wan, Peiyang Gu, Feng Zhou, Hongliang Wang, Jun Jiang, Dongyun Chen, Qingfeng Xu, Jian-Mei Lu
Four end-functionalized polymers bearing chains with different hydrophilicities were successfully synthesized using a red-light emitting initiator via atom transfer radical polymerization (ATRP). All polymers possessing aggregation-induced emission (AIE) properties emitted...
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Categories: Polymer Science News

New electroactive macromonomers and multi-responsive PEDOT graft copolymers

Fri, 06/15/2018 - 11:45
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00680F, PaperSara Marina, Daniele Mantione, Manojkumar Kasina, Vijayakrishna Kari, Junkal Gutierrez, Agnieszka Tercjaks, Ana Sanchez-Sanchez, David Mecerreyes
Poly(3,4-ethylenedioxithiophene) (PEDOT) is the conducting polymer with the biggest prospects in the field of organic electronics due to its high electrical conductivity and transparency as thin films. It is commonly...
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Categories: Polymer Science News

Using Benzoxazine Chemistry and Bio-Based Triblock Copolymer to Prepare Functional Porous Polypeptide Capable of Efficient Dye Adsorption

Fri, 06/15/2018 - 11:45
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00664D, PaperCheng-Chang Tsai, Zhihua Gan, Shiao-Wei Kuo
A new biocompatible poly(ε-caprolactone-b-ethylene oxide-b-tyrosine) triblock copolymer (PCL-b-PEO-b-PTyr) has been synthesized through ring opening polymerization (ROP) employing PCL-b-PEO-NH2 as a macro-initiator. The phenolic OH groups on the side chains of...
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Categories: Polymer Science News

Hydrogen Bonding Reinforcement as a Strategy to Improve Upper Critical Solution Temperature of Poly(N-Acryloylglycinamide-co-Methacrylic acid)

Fri, 06/15/2018 - 10:45
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00733K, PaperWenhui Sun, Zesheng An, Peiyi Wu
Hydrogen bonding reinforcement via copolymerization of N-acryloylglycinamide (NAGA) with methacrylic acid (MAA) is employed as a strategy to improve the upper critical solution temperature (UCST) to a biologically relevant range....
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Categories: Polymer Science News

A Facile Route to Bespoke Macro- and Mesoporous Block Copolymer Microparticles

Fri, 06/15/2018 - 08:43
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00707A, PaperGuping He, Thomas M Bennett, Mohammad Alauhdin, Michael W Fay, Xin Liu, Simon Schwab, Chenggong Sun, Steven M Howdle
We report a facile and versatile strategy for the bespoke fabrication of macro- and mesoporous block copolymer microparticles. A clean synthetic route, RAFT dispersion polymerisation in supercritical carbon dioxide (scCO2),...
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Categories: Polymer Science News

Synthesis and Adhesion Control of Glucose-based Bioadhesive via Strain-Promoted Azide-Alkyne Cycloaddition

Wed, 06/13/2018 - 09:59
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00339D, PaperIrawan Pramudya, Cheoljae Kim, Hoyong Chung
A glucose-based bioadhesive, poly(2-methacrylamido glucopyranose-co-N-methacryloyl-3,4-dihydroxyl-l-phenylalanine-co-8-azidooctyl methacrylate) [poly(MG-co-MDOPA-co-AOM)], has been synthesized by thermally-initiated free radical polymerization. The new bioadhesive is composed of three modules: a hydrophilic glycopolymer segment, a mussels-inspired catechol...
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Categories: Polymer Science News

Cd2+ coordination: an efficient structuring switch for polypeptide polymers

Wed, 06/13/2018 - 09:59
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00810H, CommunicationJuien Aujard-Catot, Michel Nguyen, Christian Bijani, Genevieve Pratviel, Colin Bonduelle
Stimuli-responsive polypeptides have practical applications in devices and therapeutic delivery. Here we report that coordination to Cd2+ metal species can be used as a robust stimulus to control both, [small alpha]-helix...
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Categories: Polymer Science News

Syntheses of 2-(trifluoromethyl)acrylate-containing block copolymers via RAFT polymerization using a universal chain transfer agent

Wed, 06/13/2018 - 06:52

Polym. Chem., 2018, Advance Article
DOI: 10.1039/C8PY00655E, PaperSanjib Banerjee, Marc Guerre, Bruno Ameduri, Vincent Ladmiral
2-(Trifluoromethyl)acrylate-containing block copolymers were synthesized via RAFT polymerization using a universal CTA.
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Categories: Polymer Science News

Polyurethane by Ionic Liquid Crosslink; A New Class of Super Shape-Memory Like Polymer

Tue, 06/12/2018 - 03:27
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00549D, PaperPrasanta Kumar Behera, Prantik Mondal, Nikhil K Singha
This investigation reports on the synthesis of a new class of ionic liquid crosslinked shape-memory polyurethane (PU-IL) based on polycaprolactone diol and 4,4[prime or minute]-methylenebis(phenyl isocyanate) (MDI), which can overcome the major...
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Categories: Polymer Science News

Reversible Star Assembly of Polyolefins Using Interconversion between Boroxine and Boronic Acid

Tue, 06/12/2018 - 02:27
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00519B, PaperRyo Tanaka, Naoki Tonoko, Shin-ichi Kihara, Yuushou Nakayama, Takeshi Shiono
Synthetic methods for star-shaped polyolefins has been strongly desired for a long time because they would show large differences in processability and surface property compared with linear polyolefin. However, present...
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Categories: Polymer Science News

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