Polymer Science News

Reversible hierarchical structure induced by solvation and temperature modulation in an ionic liquid-based random bottlebrush copolymer

RSC - Polym. Chem. latest articles - Thu, 09/06/2018 - 04:09
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY01218K, PaperHarsha Magurudeniya, Bryan Ringstrand, Sönke Seifert, Millicent Firestone
A solvent and temperature responsive random copolymer having a polyacrylate backbone with emanating ionic liquid side chains of 1-decyl-3-methylimidazolium chloride and 1-(2-carboxyethyl)-3-imidazolium bromide grafted poly-N-isopropylacrylamide (PNIPAM) possessing bottlebrush architecture is...
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Use of poly(methyl methacrylate) with an unsaturated chain end as a macroinitiator precursor in organocatalyzed living radical block polymerization

RSC - Polym. Chem. latest articles - Wed, 09/05/2018 - 05:49

Polym. Chem., 2018, Advance Article
DOI: 10.1039/C8PY01066H, PaperJun Jie Chang, Longqiang Xiao, Chen-Gang Wang, Hiroshi Niino, Shunsuke Chatani, Atsushi Goto
PMMA–PBA block copolymers were synthesized through a one-pot AFCT and organocatalyzed LRP from a PMMA containing an unsaturated chain end.
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Proton-conducting poly(ether sulfone ketone)s containing a high density of pendant sulfonic groups by a convenient and mild post-sulfonation

RSC - Polym. Chem. latest articles - Tue, 09/04/2018 - 11:57
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00996A, PaperChenyi Wang, Yuanpeng Zhou, Bin Shen, Xiaoyan Zhao, Jian Li, Qiang Ren
Aromatic sulfonated polymers are a class of important proton exchange membranes. With an aim to further enhance their properties at low levels of ion-exchange capacity (IEC), a class of new...
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Categories: Polymer Science News

Synthesis of multifunctional homopolymers via sequential post-polymerization reactions

RSC - Polym. Chem. latest articles - Tue, 09/04/2018 - 05:50

Polym. Chem., 2018, Advance Article
DOI: 10.1039/C8PY01055B, MinireviewTomohiro Kubo, Charles P. Easterling, Rebecca A. Olson, Brent S. Sumerlin
This mini-review highlights recent developments in the synthesis of multifunctional homopolymers, i.e., homopolymers with multiple pendent functionalities.
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Categories: Polymer Science News

Poly(2-oxazoline)s with Pendant Cubane Groups

RSC - Polym. Chem. latest articles - Mon, 09/03/2018 - 08:06
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY01037D, PaperMathias Glassner, Bart Verbraeken, Valentin Victor Jerca, Kristof Van Hecke, John Tsanaktsidis, Richard Hoogenboom
The effect of cubane side chains on polymer propoerties is rarely explored. Here, the synthesis of a 2-oxazoline monomer having a cubane moiety in the 2-position is reported. Cationic ring-opening...
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Photo-driven morphological transformations of supramolecular polymers actuated by an overcrowded alkene switch

RSC - Polym. Chem. latest articles - Mon, 09/03/2018 - 03:03
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY01070F, CommunicationWen-Jing Liang, Jing-Jing Yu, Qi Zhang, Chang-Shun Ma, Zhao-Tao Shi, Dahui Qu
A novel light-responsive supramolecular polymer was demonstrated from an overcrowded alkene switch (OAS) mounted with two rigid 2-ureido-4-pyrimidinone (UPy) groups. By strong quadruple hydrogen bonding interactions, trans OAS-Upy could form...
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BODIPY-derived multi-channel polymeric chemosensor with pH-tunable sensitivity: selective colorimetric and fluorimetric detection of Hg2+ and HSO4- in aqueous media

RSC - Polym. Chem. latest articles - Mon, 09/03/2018 - 03:03
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY01232F, PaperUjjal Haldar, Hyung-il Lee
The development of water-soluble polymeric probes capable of recognizing more than one analyte is quite challenging and has attracted significant attention. A water-soluble random copolymer (P1) consisting of hydrophilic N,...
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Categories: Polymer Science News

Yb(NTf2)3/HFIP Induced High Isotacticity in Atom Transfer Radical Polymerization of Methyl Methacrylate

RSC - Polym. Chem. latest articles - Fri, 08/31/2018 - 01:33
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00953H, CommunicationSebastian Schaubach, Xiao-Yan Wang, Jun-Fang Li, Xiuli Sun, Sunewang Wang, Yong Tang
High triad isotacticity (mm = 69%) in copper/BOX mediated ATRP of MMA is achieved. The use of strong Lewis acid Yb(NTf2)3 (1.0-8.0 mol%) and HFIP as the solvent is the...
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Polymerization of 1-Chloro-2-Phenylacetylenes by Cationic Monoanionic Tridentate (S,S)-Bis(oxazolinylphenyl)amido-Ligated Palladium Catalysts: Is It Coordination-Insertion Mechanism?

RSC - Polym. Chem. latest articles - Thu, 08/30/2018 - 23:31
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00903A, PaperXiaolu Wu, Zhi Yang, Xinwen Yan, Pengfei Zhang, Lin Wang, Ge Guo, yuping Dong, Xiaofang Li
A series of air-stable monoanionic tridentate (S,S)-bis(oxazolinylphenyl)amido-ligated palladium (Pd) chloride complexes (R2-(S,S)-BOPA)PdCl (1a–e) (1a: R = Ph; 1b: R = iPr; 1c: R = Bn; 1d: R = Et; 1e:...
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Temperature-Regulated Aggregation-Induced Emissive Self-Healable Hydrogel for Controlled Drug Delivery

RSC - Polym. Chem. latest articles - Thu, 08/30/2018 - 23:31
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY01064A, PaperXuemeng Wang, Kaiyue Xu, Haicui Yao, Limin Chang, Yong Wang, Wenjuan Li, Youliang Zhao, Jianglei Qin
Self-healable hydrogels are very attractive in bioscience and biotechnology including drug loading and delivery, artificial organs, and bioswitch. In this research, thermoresponsive copolymers TPE-[P(DMA-stat-DAA)]2 containing tetraphenylethylene (TPE) moiety and ketone...
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Categories: Polymer Science News

Phosphazene-Catalyzed Oxa-Michael Addition Click Polymerization

RSC - Polym. Chem. latest articles - Thu, 08/30/2018 - 01:08
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY01089G, PaperHongjun Yang, YiongKang Zuo, Jiandong Zhang, Yiye Song, Wenyan Huang, Xiaoqiang Xue, Qimin Jiang, Aibin Sun, Bibiao Jiang
This paper reports a new type of click chemistry via a phosphazene bases-catalyzed oxa-Michael addition of an alcohol to an acrylate. The studies on the reactions between small molecules showed...
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Categories: Polymer Science News

Sequence-Definition from Controlled Polymerization: The Next Generation of Materials

RSC - Polym. Chem. latest articles - Thu, 08/30/2018 - 01:08
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY01190G, Review ArticleJeroen De Neve, Joris J. Haven, Lowie Maes, Tanja Junkers
An overview is given on the state-of-the-art in synthesis of sequence-controlled and sequence-defined oligomers and polymers. These materials constitute chains in which chemical information is encoded along the backbone either...
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Categories: Polymer Science News

Preparation and Application of Flavor and Fragrance Capsules

RSC - Polym. Chem. latest articles - Tue, 08/28/2018 - 13:29
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00863A, Review ArticleLei He, Jing Hu, Weijun Deng
Flavor and fragrance as a special active material are applied widely in daily life, which can bring pleasant olfactory and gustatory sensation. However, their many ingredients are chemically unstable and...
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Categories: Polymer Science News

Hybrid Block Copolymers of Polyester/Polycarbonate and Polypeptide Synthesized via One-Pot Sequential Ring-Opening Polymerization

RSC - Polym. Chem. latest articles - Tue, 08/28/2018 - 09:25
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00835C, Paper Open Access &nbsp This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.Špela Gradišar, Ema Žagar, David Pahovnik
Efficient approach toward one-pot sequential ring-opening polymerization (ROP) of the cyclic ester/carbonate and N-carboxyanhydride (NCA) monomers, differing in reactivity and type of the propagating group, is presented. In the first...
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Categories: Polymer Science News

Fabrication of Theranostic Amphiphilic Conjugated Bottlebrush Copolymers with Alternating Heterografts for Cell Imaging and Anticancer Drug Delivery

RSC - Polym. Chem. latest articles - Mon, 08/27/2018 - 09:40
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY01221K, PaperFangjun Liu, Xuezhi Zhao, Xiaolong Zhang, Jinlei Peng, Huiru Yang, Xianshuo Zhang, Kaicheng Deng, Liwei Ma, Cong Chang, Hua Wei
Bottlebrush (bb) copolymers with hetero-polymer grafts represent an intriguing advanced macromolecular architecture due to the unique phase-separation of the pendant side chains for polymer self-assembly and various functionalizations. However, compared...
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Categories: Polymer Science News

Polycycloacetals via Polytransacetalization of Diglycerol Bisacetonide

RSC - Polym. Chem. latest articles - Mon, 08/27/2018 - 08:13
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY01191E, PaperAndrea Hufendiek, Sophie Lingier, Pieter Espeel, Stefaan de Wildeman, Filip Du Prez
Diglycerol bisacetonide (DGA) was synthesized and isolated from large scale available and renewable diglycerol and acetone. DGA was directly used in polytransacetalization with 1,4-cyclohexanedione or 4,4’-bicyclohexanone as diketone monomers. The...
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Self-crosslinkable and modifiable polysiloxanes possessing Meldrum’s acid groups

RSC - Polym. Chem. latest articles - Mon, 08/27/2018 - 04:04
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY01173G, PaperWei-Lun Su, Ying-Ling Liu
Meldrum’s acid (MA) groups are incorporated to polydimethylsiloxane (PDMS) chains as reactive units to impart self-crosslinkable and modifiable features to PDMS. The synthesis of MA-functionalized PDMS (MA-PDMS) has been performed...
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Categories: Polymer Science News

Copolymerization of Ethylene with Styrene Catalyzed by Scandium Catalyst

RSC - Polym. Chem. latest articles - Fri, 08/24/2018 - 23:10
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY00889B, PaperShihui Li, Mei-Yan Wang, Dongmei Cui
Copolymerization of ethylene (E) and styrene (St) was successfully achieved by using a scandium catalyst to produce a series of pseudo-random copolymers. The incorporation content of St monomer could be...
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Categories: Polymer Science News

Tri-pillar[5]arene-based multi-stimuli responsive supramolecular polymer for fluorescent detection and separation of Hg2+

RSC - Polym. Chem. latest articles - Fri, 08/24/2018 - 12:57
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY01085D, PaperXiao-Mei Jiang, Xiaojuan Huang, Shan-Shan Song, Xiao-Qiang Ma, You-Ming Zhang, Hong Yao, Tai-Bao Wei, Qi Lin
A novel tripodal organic gelator (JP5) decorated with three pillar[5]arene tails was designed, synthesized and thoroughly characterized. The stable supramolecular polymer JP5G was obtained within 0.5 minutes by the self-assembly...
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Categories: Polymer Science News

Copper Ligand and Anion Effects: Controlling the Kinetics of the Photoinitiated Copper(I) Catalyzed Azide—Alkyne Cycloaddition Polymerization

RSC - Polym. Chem. latest articles - Fri, 08/24/2018 - 11:55
Polym. Chem., 2018, Accepted Manuscript
DOI: 10.1039/C8PY01004H, PaperBassil M El-Zaatari, Shea Cole, Derek Bischoff, Christopher Kloxin
The kinetics of photoinduced copper(I) catalyzed azide-alkyne cycloaddition (CuAAC) polymerizations were assessed as a function of copper(II) amine-based ligands. Copper(II) bromide ligated with 1,1,4,7,10,10-hexamethylenetetramine (HMTETA) exhibited the fastest kinetics in...
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