Polymer Science News

SuFEx - A selectively triggered chemistry for fast, efficient and equimolar polymer-polymer coupling reactions

RSC - Polym. Chem. latest articles - Thu, 10/19/2017 - 07:07
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01636K, PaperJohannes Christopher Brendel, Liam Martin, Junliang Zhang, Sebastien Perrier
The synergy between controlled radical polymerization methods and click chemistry enables the design of complex and well-defined materials. To date, a number of highly efficient reactions have been reported suitable...
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Controlled ring-opening polymerisation of cyclic phosphates, phosphonates and phosphoramidates catalysed by hereroleptic BHT-alkoxy magnesium complexes

RSC - Polym. Chem. latest articles - Wed, 10/18/2017 - 06:54
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01472D, PaperIlya E. Nifant'ev, Andrei V. Shlyahtin, Vladimir V. Bagrov, Pavel D. Komarov, Maxim A. Kosarev, Alexander N. Tavtorkin, Mikhail M. Minyaev, Vitaliy A. Roznyatovsky, Pavel V. Ivchenko
We report here that heteroleptic ВНТ-Mg(OR) complexes, e.g. [(ВНТ)Mg(OBn)(THF)]2 (Mg3), represent effective and versatile ring-opening polymerisation (ROP) catalysts for several cyclic ethylene phosphate monomers (CEPMs), such as ethylene phosphates with...
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Thiol-ene polymerization of oligospiroketal rods

RSC - Polym. Chem. latest articles - Wed, 10/18/2017 - 06:54
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01569K, PaperPablo Wessig, Tanja Schulze, Alexandra Pfennig, Steffen Weidner, Sascha Prentzel, Helmut Schlaad
The nucleophilic thiol-ene (thia-Michael) reaction between molecular rods bearing terminal thiols and bis-maleimides was investigated. The molecular rods exhibit a oligospiroketal (OSK) and oligospirothioketal (OSTK) backbone. Contrary to the expectations,...
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PDMAEMA-b-PPOA-b-PDMAEMA Double-Bond-Containing Amphiphilic Triblock Copolymer: Synthesis, Characterization, and pH-Responsive Self-Assembly

RSC - Polym. Chem. latest articles - Wed, 10/18/2017 - 06:54
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01640A, PaperAishun Ding, Guolin Lu, Hao Guo, Xiaoyu Huang
A series of ABA amphiphilic triblock copolymers, consisting of hydrophobic double-bond-containing poly(phenoxyallene) (PPOA) and hydrophilic poly(2- (dimethylamino)ethyl methacrylate) (PDMAEMA) segments, was synthesized by successive free radical polymerization and single-electron-transfer living...
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Synthesis of Ultra-High Molecular Weight ABA Triblock Copolymers via Aqueous RAFT-mediated Gel Polymerisation, End Group Modifications and Chain Coupling

RSC - Polym. Chem. latest articles - Wed, 10/18/2017 - 05:52
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01410D, PaperVu H Dao, Neil R Cameron, Kei Saito
The synthesis of ultra-high molecular weight (UHMW) polymers using reversible deactivation radical polymerisation techniques remains a challenge and has only been the centre of attention in a limited number of...
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Glass surface modification via Cu(0)-mediated living radical polymerization of fluorinated and non-fluorinated acrylate

RSC - Polym. Chem. latest articles - Wed, 10/18/2017 - 05:52
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01530E, PaperMojtaba Enayati, Alireza Abbaspourrad
Terminal silanol groups on the glass surface were used for the chemical bonding of [small alpha]-bromo amide as the initiator for surface initiated Cu(0)-mediated living radical polymerization (LRP) to graft well-defined...
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A novel self-healing electrochromic film based on triphyelamine cross-linked polymer

RSC - Polym. Chem. latest articles - Wed, 10/18/2017 - 05:52
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01434A, PaperRongzong Zheng, Jiaqiang Zhang, Chunyang Jia, Zhongquan Wan, Yaru Fan, Xiaolong Weng, Jianliang Xie, L. J. Deng
The cracking of electrochromic materials due to aging or reiterative bending is a major problem which noticeably degrades the performance of electrochromic devices. In current research, we successfully induced a...
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Photo-crosslinkable comb-type copolymers bearing benzophenone moiety for enhanced swelling kinetics of hydrogels

RSC - Polym. Chem. latest articles - Wed, 10/18/2017 - 05:52
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01647F, PaperEunsu Lee, Dowan Kim, Seung Yun Yang, Jin-Woo Oh, Jinhwan Yoon
Photo-polymerization has been intensively studied for the preparation of the hydrogels because of several attractive features, including independent spatial control with photomasks, mild reaction conditions, and simple procedure. Benzophenone (BP)...
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Pyridine-Incorporated Alcohol-Soluble Neutral Polyfuorene Derivatives as Efficient Cathode-Modifying Layers for Polymer Solar Cells

RSC - Polym. Chem. latest articles - Tue, 10/17/2017 - 11:36
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01521F, PaperGuiting Chen, Sha Liu, Zhicai He, Hongbin Wu, Wei Yang, Bin Zhang, Yong Cao
A class of novel alcohol-soluble conjugated polymers with pyridine incorporated at the side chains of fluorene scaffolds is developed and utilized as cathode interfacial layers (CILs) for both conventional and...
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Investigation of the triazolinedione (TAD) reaction with tryptophan as a direct route to copolypeptide conjugation and cross-linking

RSC - Polym. Chem. latest articles - Tue, 10/17/2017 - 10:35
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01477E, CommunicationSaltuk Hanay, Dermot F Brougham, Aylvin A. Dias, Andreas Heise
The reaction of tryptophan containing N-carboxyanhydride (NCA) derived polypeptides with triazolinedion (TAD) is demonstrated. This click-like reaction is fast, selective and permits polypeptide conjugation utilising a natural amino acid. It...
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All-Acrylic Superelastomers: Facile Synthesis and Exceptional Mechanical Behavior

RSC - Polym. Chem. latest articles - Tue, 10/17/2017 - 09:35
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01518F, PaperNam-Goo Kang, Wei Lu, Andrew Goodwin, Yangyang Wang, Panchao Yin, Weiyu Wang, Jiahua Zhu, Ting Wu, Xinyi Lv, Bin Hu, Kunlun Hong, Jimmy W. Mays
All-acrylic multigraft copolymers, poly(butyl acrylate)-g-poly(methyl methacrylate), synthesized using a facile grafting-through methodology, exhibit elongation at break (>1700%) and strain recovery behavior far exceeding those of any commercial acrylic (~500%) and...
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Temperature-responsive hydrogels via the electrostatic interaction of amphiphilic diblock copolymers with pendant-ion groups

RSC - Polym. Chem. latest articles - Tue, 10/17/2017 - 09:35

Polym. Chem., 2017, Advance Article
DOI: 10.1039/C7PY01460K, PaperHye Yun Lee, Seung Hun Park, Jae Ho Kim, Moon Suk Kim
In this work, we prepared amphiphilic polyester diblock copolymers with pendant-ion groups and examined the formation of temperature-responsive hydrogels via the electrostatic interaction of cationic or anionic pendant groups.
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In Situ Stabilizer Formation from Methacrylic Acid Macromonomers in Emulsion Polymerization

RSC - Polym. Chem. latest articles - Tue, 10/17/2017 - 07:33
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01583F, Paper Open Access &nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Ingeborg Schreur-Piet, Johan P.A. Heuts
Oligomers of methacrylic acid containing a propenyl [small omega]-endgroup (i.e. MAA-macromonomers) were synthesized by cobalt-mediated catalytic chain transfer polymerization and used as precursors to stabilizers in emulsion polymerization. It was found...
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Multi POSS Cluster-Wrapped Polymers and Their Block Copolymers with A PEO Bottlebrush Polymer: Synthesis and Aggregation

RSC - Polym. Chem. latest articles - Tue, 10/17/2017 - 06:33
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01344B, PaperChui-Song Meng, Yu-Kun Yan, Wei Wang
In this paper, we report an approach for synthesizing multi cluster-wrapped polymers and their block copolymers with a bottlebrush polymer with controlled chain length and composition via the living ring-opening...
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Thermo and pH dual-responsive drug-linked pseudo-polypeptide micelles with comb-shaped polymer as micellar exterior

RSC - Polym. Chem. latest articles - Tue, 10/17/2017 - 06:33
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01389B, PaperWeizhi Chen, Liling Su, Peng Zhang, Cheng Li, Dan Zhang, Wei Wu, Xiqun Jiang
Thermo and pH dual-responsive drug-linked pseudo-polypeptide micelles were prepared by self-assembly strategy. Initially, a temperature-responsive comb-shaped poly(2-isopropyl-2-oxazoline)-b-linear poly(acrylic acid) block copolymer (CPiPrOx-b-PAA) was synthesized through a combination of living cationic...
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Gelatin based dynamic hydrogels via thiol-norbornene reactions

RSC - Polym. Chem. latest articles - Tue, 10/17/2017 - 05:30
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01630A, PaperMario Perera, Neil Ayres
Gelatin based dynamic hydrogels have been synthesized by crosslinking norbornene functionalized gelatin with poly(2-hydroxypropyl methacrylate-s-mercaptoethyl methacrylate) (poly(HPMA-s-MEMA)) using radical mediated thiol-norbornene reactions. The poly(HPMA-s-MEMA) was prepared from a pyridyl disulfide...
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A detailed mechanistic study of bulk MADIX of styrene and its chain extension

RSC - Polym. Chem. latest articles - Mon, 10/16/2017 - 05:16
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00961E, PaperDries Devlaminck, Paul Van Steenberge, Lies De Keer, Marie-Francoise Reyniers, Dagmar D'hooge
The microstructural evolution of individual macrospecies during bulk macromolecular design by interchange of xanthates (MADIX) of styrene, with (O-ethyl xanthate)-2-ethyl propionate as initial agent (R0X), and its chain extension with...
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Enzymatic Approach for the Synthesis of Biobased Aromatic-aliphatic Oligo-/Polyesters

RSC - Polym. Chem. latest articles - Fri, 10/13/2017 - 07:16
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01559C, PaperCsaba Fodor, Milad Golkaram, Jur van Dijken, Albert Woortman, Katja Loos
Aromatic moiety containing oligoesters have been synthetized by enzymatic polymerization of AB-type alkylenehydroxybenzoates via different polymerization methods. Oligo(2-hydroxyethyloxy benzoate) (OHEBA) were obtained with number average molecular weights (Mn) around 2000...
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Synthesis of Sustainable Guar gum-g-(Acrylic Acid-co-Acrylamide-co-3-Acrylamido Propanoic Acid) Interpenetrating Polymer Network via in situ Attachment of 3-Acrylamido Propanoic Acid for Analyzing Superadsorption Mechanism of Pb(II)/Cd(II)/Cu(II) and...

RSC - Polym. Chem. latest articles - Fri, 10/13/2017 - 06:01
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01564J, PaperNayan Ranjan Singha, Manas Mahapatra, Mrinmoy Karmakar, Arnab Dutta, Himarati Mondal, Pijush Kanti Chattopadhyay
For the first time, guar gum-g-(acrylic acid-co-acrylamide-co-3-acrylamido propanoic acid) (GGAAAMAPA), a smart environment-friendly and sustainable interpenetrating polymer network hydrogel, acquiring unprecedented thermomechanical/physicochemical properties and excellent recyclability, has been synthesized by...
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Nonstoichiometric Polycondensation Based on Friedel-Crafts Acylation in Superacid for the Synthesis of Aromatic Polyketones

RSC - Polym. Chem. latest articles - Thu, 10/12/2017 - 10:10
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01609C, CommunicationKazuya Matsumoto, Takayuki Ogawa, Mitsutoshi Jikei
Based on the Friedel-Crafts acylation, the nonstoichiometric polycondensation was achieved using 4,4'-dicarboxydiphenyl ether and 2,2'-dimethoxybiphenyl in trifluoromethanesulfonic acid. The decrease in the acylation reactivity of 2,2'-dimethoxybiphenyl by protonation and the...
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