Polymer Science News

Stimulus-responsive Block Copolymer Nano-Objects and Hydrogels via Dynamic Covalent Chemistry

RSC - Polym. Chem. latest articles - Fri, 07/28/2017 - 06:31
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01242J, PaperRenhua Deng, Yin Ning, Elizabeth Jones, Victoria Cunningham, Nicholas Penfold, Steven P Armes
Herein we demonstrate that dynamic covalent chemistry can be used to induce reversible morphological transitions in block copolymer nano-objects and hydrogels. Poly(glycerol monomethacrylate)-poly(2-hydroxypropyl methacrylate) (PGMA-PHPMA) diblock copolymer nano-objects (vesicles or...
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Synthesis of well-defined epoxy-functional spherical nanoparticles by RAFT aqueous emulsion polymerization

RSC - Polym. Chem. latest articles - Thu, 07/27/2017 - 11:13
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01107E, PaperFiona Hatton, Joe Lovett, Steven P Armes
The environmentally-friendly synthesis of epoxy-functional spherical nanoparticles has been achieved using polymerization-induced self-assembly (PISA) in aqueous solution. Firstly, a non-ionic hydrophilic stabilizer block, poly(glycerol monomethacrylate) (PGMA), was prepared by reversible...
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Functional micelles formed from glucose-, thermo- and pH-triple responsive copolymers for controlled release

RSC - Polym. Chem. latest articles - Thu, 07/27/2017 - 10:11
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01093A, PaperHui Zou, Chunyao Wang, Weizhong Yuan, Shanfeng Wang, Maoquan Li
A glucose-, thermo-, and pH-triple responsive copolymer, poly(2-phenylboronic esters-1,3-dioxane-5-ethyl) methylacrylate-b-poly(2-(N,N-dimethylamino)ethyl methacrylate) (PPBDEMA-b-PDMAEMA), was synthesized through atom transfer radical polymerization (ATRP). Benefiting from its amphiphilicity, PPBDEMA-b-PDMAEMA could self-assemble in water into...
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The effect of conjugated [small pi]-bridge and fluorination on the properties of asymmetric-building-blocks-containing polymers (ABC polymers) based on dithienopyran donor and benzothiadiazole acceptors

RSC - Polym. Chem. latest articles - Wed, 07/26/2017 - 08:53
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00964J, PaperXiaochen Wang, Ailing Tang, Fan Chen, Erjun Zhou
To investigate the effect of conjugated [small pi]-bridge and fluorination on the properties of asymmetric-building-block-containing polymers (ABC polymers), hexylthiophene (HT) was inserted into D-A type polymers based on asymmetric dithieno[3,2‑b:2[prime or minute],3[prime or minute]‑d]pyran (DTPa)...
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Amphiphilic Dendrons with A Pyrene Functional Group at the Focal Point: Synthesis, Self-Assembly and Generation-Dependent DNA Condensation

RSC - Polym. Chem. latest articles - Wed, 07/26/2017 - 08:53
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01052D, PaperYi Han, Bo Zhu, Ying Chen, Zhishan Bo, Yulan Chen
A novel class of amphiphilic dendrons with a pyrene functional group at the focal point was designed and synthesized. The self-assembly and DNA condensation behaviors of these pyrene-functionalized amphiphilic dendrons...
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Categories: Polymer Science News

Transition from smectic nanofibers to smectic vesicles in self-assemblies of PEG-b-Liquid crystal polycarbonate

RSC - Polym. Chem. latest articles - Wed, 07/26/2017 - 08:53
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01131H, CommunicationMin-Hui LI, Lu Zhou, Dapeng Zhang, Sabrina Hocine, Alessia Pilone, Sylvain Trepout, Sergio Marco, Christophe THOMAS, Jia Guo
This work reports on the self-assemblies of novel amphiphilic biodegradable cholesterol-containing block copolymers PEG-b-PMCC. The polymers are prepared through the ring opening polymerization (ROP) of a methyl and cholesteryl substituted...
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Phenyl Acrylate is a Versatile Monomer for the Synthesis of Acrylic Diblock Copolymer Nano-objects via Polymerization-Induced Self-Assembly

RSC - Polym. Chem. latest articles - Tue, 07/25/2017 - 13:34
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01161J, PaperSarah Louise Canning, Victoria Cunningham, Liam Ratcliffe, Steven P Armes
Over the last decade or so, polymerization-induced self-assembly (PISA) has become widely recognized as a versatile technique for the rational synthesis of diblock copolymer nano-objects in the form of concentrated...
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Categories: Polymer Science News

Polyetheramine(PEA): a versatile platform to tailor the properties of hydrogel via H-bonding interaction

RSC - Polym. Chem. latest articles - Tue, 07/25/2017 - 08:27
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01105A, PaperChangxu Zhang, Zhiyong Liu, Xinhui Zhang, Zixing Shi, Hongjie Xu, Xiaodong Ma, Jie Yin, Ming Tian
Hydrogels have promising applications in biomaterials and other fields. Here, to extend our previous work, we designed a novel class of PEA-P-A-PAAm hydrogel that contains two cooperative H-bonding interactions: PEO/amide...
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To branch or not to branch: C-H selectivity of thiophene-based donor-acceptor-donor monomers in direct arylation polycondensation exemplified by PCDTBT

RSC - Polym. Chem. latest articles - Tue, 07/25/2017 - 08:27

Polym. Chem., 2017, Advance Article
DOI: 10.1039/C7PY00879A, PaperFlorian Lombeck, Franziska Marx, Karen Strassel, Susanna Kunz, Caroline Lienert, Hartmut Komber, Richard Friend, Michael Sommer
The possibility for unselective C-H activation of a thiophene-based, donor-acceptor-donor monomer during direct arylation polycondensation is investigated.
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Photoswitchable fluorescent polymeric nanoparticles for rewritable fluorescence patterning and intracellular dual-color imaging with AIE-based fluorogens as FRET donors

RSC - Polym. Chem. latest articles - Tue, 07/25/2017 - 07:24
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00834A, PaperWeibang Zhong, Xuyao Zeng , Jian Chen, Xianghong Yong, Lehui Xiao, Peisheng Zhang
Photoswitchable fluorescent polymer nanoparticles (PFPNs) were constructed from an aggregation-induced emission (AIE) based fluorogen and a photochromic spiropyran-linked amphiphilic copolymer via a simple co-precipitation method. Possessing the reversible photoisomerization property...
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Multifunctional porous Troger's base polymer with tetraphenylethene unit: CO2 adsorption, luminescence and sensing property

RSC - Polym. Chem. latest articles - Tue, 07/25/2017 - 06:24
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00856B, PaperYuanzheng Cui, Yuchuan Liu, jiancong liu, Jianfeng Du, Yue Yu, Shun Wang, Zhiqiang Liang, Jihong Yu
Luminescent porous organic polymers have shown potential applications in sensing, light-harvesting, photocatalysis and photo-voltaic or electronic devices. In this paper, a luminescent porous Troger's base polymer (LMOP-15) with tetraphenylethene unit...
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Tunable emission of tetraphenylethylene copolymer via polymer matrix assisted and aggregation-induced emission

RSC - Polym. Chem. latest articles - Tue, 07/25/2017 - 06:24
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01013C, PaperXiang Ma, Chengjie Zhang, Xuyang Yao, Jie Wang
A novel polyacrylamide copolymer (PAM) possessing tetraphenylethylene (TPE) AIEgens was synthesized, which exhibited tunable fluorescence emission under different solvent conditions. Different from traditional AIEgens showing strong fluorescence in poor solvents...
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Conditions for Multicompartment Polymeric Tadpoles via Temperature Directed Self-Assembly

RSC - Polym. Chem. latest articles - Tue, 07/25/2017 - 06:24
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01024A, PaperMichael Monteiro, Valentin Bobrin, Zhongfan Jia
The temperature-directed morphology transformation (TDMT) method is a powerful technique to produce nanostructures directly in water at scale. The TDMT method can also be used to form the asymmetric tadpole...
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Categories: Polymer Science News

Functional nanonetwork-structured polymers with inbuilt poly(acrylic acid) linings for enhanced adsorption

RSC - Polym. Chem. latest articles - Mon, 07/24/2017 - 10:12
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01032J, CommunicationWeicong Mai, Yuan Zuo, Chuanfa Li, Jinlun Wu, Kunyi Leng, Xingcai Zhang, Ruliang Liu, Ruowen Fu, Dingcai Wu
Functional nanonetwork-structured polymers with inbuilt poly(acrylic acid) linings were successfully synthesized by combining surface-initiated atom transfer radical polymerization (SI-ATRP) and hypercrosslinking chemistry, and demonstrated superior adsorption performances toward basic dyes...
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Stereochemical Effects on the Mechanical and Viscoelastic Properties of Renewable Polyurethanes Derived from Isohexides and Hydroxymethylfurfural

RSC - Polym. Chem. latest articles - Mon, 07/24/2017 - 08:11
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00949F, PaperRobert Kieber III, Samantha A. Silver, Justin Glenn Kennemur
Biomass-derived polyurethanes were synthesized using 2,5-bishydroxymethylfuran (BHMF) and diisocyanate functionalized isohexides, isosorbide bis(3-isocyanatopropanoate) (ISBIP) and isomannide bis(3-isocyanatopropanoate) (IMBIP), at varying feed ratios. PU compositions accurately reflect the feed of ISBIP...
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Categories: Polymer Science News

Fast Swelling Strategy for Flower-Like Micro-Sized Colloidal Surfactants with Controllable Patches by Regulating the Tg of Seed Particles

RSC - Polym. Chem. latest articles - Fri, 07/21/2017 - 07:33
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00966F, PaperLei Tian, Xue Li, Jin Liu, Dewei Wan, Zafar Ali, Qiuyu Zhang
Fast swelling strategies for constructing functional particle materials are we have been pursuing, although some efforts have been paid by some researchers recently. Herein, we report an efficient swelling procedure...
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Categories: Polymer Science News

Hetero-layered Hybrid Dendrimers with Optimized Sugar Head Groups for Enhancing Carbohydrate-Protein Interactions

RSC - Polym. Chem. latest articles - Fri, 07/21/2017 - 07:33
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01044C, PaperRahul S Bagul, Maryam Hosseini, Tze Chieh Shiao, Nadim Saade, Rene Roy
The efficient synthesis of multitasking dendrimers is at the heart of nanomolecular therapeutic applications and constitute one of the cornerstone for drugs and genes delivery. Additional applications for glycodendrimers in...
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Categories: Polymer Science News

Configuration independent AIE-active supramolecular polymers of cyanostilbene through photo-stable host-guest interaction of pillar[5]arene

RSC - Polym. Chem. latest articles - Thu, 07/20/2017 - 07:10
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00845G, PaperManivannan Kalavathi Dhinakaran, Weitao Gong, Yue Yin, Wajahat Ali, Xiao-jun Kuang, Leyong Wang, Guiling Ning
Supramolecular polymerization enabled, configuration independent AIE of cyanostilbene was achieved through host-guest of pillar[5]arene with nitrile triazole guest. Intrestingly , the same cyanostilbene core of host, control and control-guest lost...
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3D printed OFETs of the 1,4-bis(3-phenylquinoxalin-2-yl)benzene based polymer semiconductors

RSC - Polym. Chem. latest articles - Thu, 07/20/2017 - 07:10
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00810D, PaperYu Li Huang, Hua Chen, Jun Wei Yang, Wan Li Tian, Weizhi Wang
In this paper, we polymerized 1,4-bis(3-phenylquinoxalin-2-yl)benzene unit with DPP and isoindigo units to produce four new polymers, and deeply investigate the influence of DPP and isoindigo units on the semiconductor...
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Effect of Backbone Structure on the Thermoelectric Properties of Donor-acceptor Conjugated Polymers

RSC - Polym. Chem. latest articles - Thu, 07/20/2017 - 07:10
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01005B, CommunicationLuhai Wang, Chengjun Pan, Ansheng Liang, Xiaoyan Zhou, Wenqiao Zhou, Tao Wan, Lei Wang
Three donor-acceptor (D-A)-structured conjugated polymers with different backbones, poly((9,9-dioctyfluorene)-2,7-diyl-alt-benzothiazole) (F8BT), poly((9,9-dioctylfluorene)-2,7- diyl-alt-(4,7-bis(3-hexylthien-5-yl)-2,1,3-benzothiadiazole)-2',2''-diyl) (F8TBT), and poly(N-9'-heptadecanyl-2,7-carbazole-alt-(4,7-bis(3-hexylthien-5-yl)-2,1,3-benzothiadiazole)-2',2''-diyl) (C8TBT), were synthesized via conventional Suzuki polymerization. All three polymers showed good thermal and electrochemical...
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