Polymer Science News

Direct arylation polymerization of asymmetric push-pull aryl halides

RSC - Polym. Chem. latest articles - Thu, 04/06/2017 - 11:41

Polym. Chem., 2017, Advance Article
DOI: 10.1039/C7PY00237H, CommunicationLiyan You, Saadia T. Chaudhry, Yan Zhao, Junchen Liu, Xikang Zhao, Jiazhi He, Jianguo Mei
Recently, direct arylation polymerization (DArP) has emerged as a greener polymerization method for donor-acceptor (D-A) type conjugated polymers.
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The Living Anionic Polymerization of Activated Aziridines: Systematic Study of Reaction Conditions and Kinetics

RSC - Polym. Chem. latest articles - Thu, 04/06/2017 - 04:32
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00436B, PaperElisabeth Rieger, Tassilo Gleede, Katja Weber, Angelika Manhart, Manfred Wagner, Frederik R Wurm
"A living race" - polymerization kinetics of anionic polymerizations depend strongly on solvent polarity and reactivity of the growing chain end. Both the carb- and oxyanionic polymerization is under control...
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Categories: Polymer Science News

Triple-Stimuli-Responsive Ferrocene-Containing Homopolymer by RAFT Polymerization

RSC - Polym. Chem. latest articles - Thu, 04/06/2017 - 03:32
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00091J, PaperXue Jiang, Ruru Li, Chun Feng, Guolin Lu, Xiaoyu Huang
Well-defined ferrocene-containing homopolymers were synthesized by RAFT homopolymerization of an acrylate monomer bearing a ferrocene (Fc) unit and an N,N-diethylamino ethyl (DEAE) group, i.e. 2-(3-(N-(2-(diethylamino)ethyl)- acrylamido)propanoyloxy)ethyl ferrocenecarboxylate (Fc-DEAE-AM). As an...
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Synthesis of diblock copolymers consisting of POSS-containing random methacrylate copolymers and polystyrene and their cross-linked microphase-separated structure via fluoride ion-mediated cage scrambling

RSC - Polym. Chem. latest articles - Wed, 04/05/2017 - 12:16

Polym. Chem., 2017, Advance Article
DOI: 10.1039/C6PY02236G, PaperKousuke Tsuchiya, Yoshihito Ishida, Atsushi Kameyama
POSS-containing diblock copolymers were synthesized for the formation of cross-linked microphase-separated structure.
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Hollow amphiphilic crosslinked nanocapsules from sacrificial silica nanoparticle templates and their application as dispersants for oil spill remediation

RSC - Polym. Chem. latest articles - Wed, 04/05/2017 - 11:16

Polym. Chem., 2017, Advance Article
DOI: 10.1039/C7PY00342K, PaperKyle C. Bentz, Muhammad Ejaz, Scarlett Arencibia, Naomi Sultan, Scott M. Grayson, Daniel A. Savin
Hollow nanocapsules were constructed using a sacrificial silica scaffold to produce novel oil remediation agents.
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Categories: Polymer Science News

Elastomeric polyethylenes accessible via ethylene homo-polymerization using an unsymmetrical [small alpha]-diimino-nickel catalyst

RSC - Polym. Chem. latest articles - Wed, 04/05/2017 - 07:15
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00434F, PaperXinxin Wang, Linlin Fan, Yanping Ma, Cunyue Guo, Gregory Solan, Yang Sun, Wen Hua Sun
Five types of unsymmetrical bis(arylimino)acenaphthenes, 1-[2,4,6-(CHPh2)3C6H2N]-2-(ArN)C2C10H6 (Ar = 2,6-Me2Ph L1, 2,6-Et2Ph L2, 2,6-i-Pr2Ph L3, 2,4,6-Me3Ph L4, 2,6-Et2-4-MePh L5), each containing a single N-2,4,6-tribenzhydrylphenyl group, have been prepared and fully characterized....
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Categories: Polymer Science News

Highly Thermal Conductive Resins formed from Wide-Temperature-Range Eutectic Mixtures of Liquid Crystalline Epoxies Bearing Diglycidyl Moieties at the Side Positions

RSC - Polym. Chem. latest articles - Wed, 04/05/2017 - 07:15
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00243B, PaperYoungsu Kim, Hyeonuk Yeo, Nam-Ho You, Se Gyu Jang, Seokhoon Ahn, Kwang-Un Jeong, Seung Hee Lee, Munju Goh
To develop advanced thermally conductive epoxy resins with liquid crystallinity, three novel liquid crystalline epoxies (LCEs) were synthesized via the substitution of phenylcyclohexyl (PCH) mesogenic moieties into the 2,5 positions...
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Categories: Polymer Science News

High-Throughput Polymer Screening in Microreactors: Boosting the Passerini-Three Component Reaction

RSC - Polym. Chem. latest articles - Wed, 04/05/2017 - 06:14
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00360A, PaperJoris Haven, Evelien Baeten, Jonathan Claes, Joke Vandenbergh, Tanja Junkers
The Passerini three-component reaction (Passerini-3CR) is studied via on-line microreactor/electrospray ionisation mass spectrometry (MRT/ESI-MS) reaction monitoring to demonstrate the high-throughput screening potential of continuous microreactors for macromolecular design. The Passerini-3CR...
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Categories: Polymer Science News

Norbornene-modified poly(glycerol sebacate) as a photocurable and biodegradable elastomer

RSC - Polym. Chem. latest articles - Tue, 04/04/2017 - 06:07

Polym. Chem., 2017, Advance Article
DOI: 10.1039/C7PY00323D, PaperYi-Cheun Yeh, Liliang Ouyang, Christopher B. Highley, Jason A. Burdick
Photocurable norbornene-functionalized poly(glycerol sebacate) (Nor-PGS) has been developed to fabricate cytocompatible, biodegradable and elastomeric scaffolds for tissue engineering applications.
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CO2-stimulated morphology transition of ABC miktoarm star terpolymer assemblies

RSC - Polym. Chem. latest articles - Tue, 04/04/2017 - 05:06
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00214A, PaperMeng Huo, Haotian Du, Min Zeng, Long Pan, Tommy Fang, Xu-Ming Xie, Yen Wei, Jinying Yuan
The integration of stimuli-responsive polymers with polymeric assemblies enables exquisite control over their nanostructures. Herein, we report the CO2-regulated self-assembly behaviors of a series of amphiphilic miktoarm star terpolymers star-[poly(ethylene...
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Categories: Polymer Science News

Mechanistic studies of the copolymerization between ethyl diazoacetate and cinnamaldehyde

RSC - Polym. Chem. latest articles - Mon, 04/03/2017 - 08:48
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C6PY02126C, PaperYan Li, Cheng Chen, Feifei Li, Liqiong Liao, Lijian Liu
Ndiazo,C3-diradical of diazomethane ([round bullet, filled]N=N-H2C[round bullet, filled]) is the resonance structure with its 1,3-dipole form and alkyl diazoacetate (ethyl diazoacetate, EDA) can interact with [small alpha],[small beta]-unsaturated aldehyde (cinnamaldehyde, CA) without any catalyst to compose...
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Synthesis and self-assembly of bioconjugates composed of thermal-responsive polymer chains and pendant lysozyme molecules

RSC - Polym. Chem. latest articles - Mon, 04/03/2017 - 07:46
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00315C, PaperLi Liu, Hanying Zhao, xiao-tian ji
In these years, synthesis of bioconjugates combining tunable properties of polymers with functionalities of proteins has aroused great interest in the biomaterials community. In this research, thermal-responsive polymer chains with...
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Categories: Polymer Science News

Impact of Cyclic Topology: Odd-Even Glass Transition Temperatures and Fluorescence Quantum Yields in Molecularly-Defined Macrocycles

RSC - Polym. Chem. latest articles - Mon, 04/03/2017 - 06:40
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00037E, PaperKun Li, Ganquan Jiang, Feng Zhou, Lishan Li, Zhengbiao Zhang, Zhijun Hu, Nianchen Zhou, Xiulin Zhu
Topological molecular architectures play a crucial role in many physico-chemical properties of materials and biological processes. Herein we synthesized a series of molecularly-defined cyclic oligomers, cyclic-TPEn+1 (n=1-6), containing tetraphenylethlene (TPE)...
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Categories: Polymer Science News

Light-Triggered Unfolding of Single Linear Molecular Bottlebrushes from Compact Globular to Wormlike Nano-Objects in Water

RSC - Polym. Chem. latest articles - Mon, 04/03/2017 - 06:40
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00279C, PaperDaniel M Henn, C. Maggie Lau, Christopher Li, Bin Zhao
This article reports on light-triggered unfolding of single stimuli-responsive linear molecular bottlebrushes, composed of either homografted poly(methoxydi(ethylene glycol) acrylate-co-o-nitrobenzyl acrylate) (P(DEGMA-co-NBA)) or heterografted poly(ethylene oxide) (PEO) and poly(o-nitrobenzyl acrylate) (PNBA)...
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Categories: Polymer Science News

Superbase catalyzed regio-selective polyhydroalkoxylation of alkynes: A facile route towards functional poly(vinyl ether)s

RSC - Polym. Chem. latest articles - Fri, 03/31/2017 - 13:11
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00363C, PaperJia Wang, Baixue Li, Dehua Xin, Rongrong Hu, Zujin Zhao, Anjun Qin, Ben Zhong Tang
The polyhydroXations, such as polyhydrothiolation, polyhydroamination, of alkynes have been well-established. However, the polyhydroalkoxylation is rarely reported. In this paper, the polyhydroalkoxylation of aromatic diynes was successfully developed in the...
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Categories: Polymer Science News

CTA-shuttled R-group approach: A versatile synthetic tool towards well-defined functional cylindrical polymer brushes via RAFT polymerization

RSC - Polym. Chem. latest articles - Fri, 03/31/2017 - 13:11
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00167C, PaperYifei Wang, Zhicheng Zheng, Zhengdong Huang, Jun Ling
We report a new synthetic route of polymer backbone (polyCTA) containing chain transfer agent (CTA) pendent groups with a theoretical degree of polymerization (DP) up to 1200 and narrow polydispersity...
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Categories: Polymer Science News

Fingerprinting antibiotics with PAE-based fluorescent sensor arrays

RSC - Polym. Chem. latest articles - Fri, 03/31/2017 - 11:10
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00227K, PaperJinsong Han, benhua wang, Markus Bender, Jessica Pfisterer, Wei Huang, Kai Seehafer, Mahdieh Yazdani, Vincent M Rotello, Caren M. Rotello, Uwe H. F. Bunz
We outline an evolution process for tongue elements composed of poly(p-aryleneethynylene)s (PAE) and detergents, resulting in a chemical tongue (24 elements) that discerns antibiotics. Cross-breeding of this new tongue with...
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Categories: Polymer Science News

Facile Synthesis of Oligo(3-hexylthiophene)s Conductive Wires with Charge-Transfer Functions

RSC - Polym. Chem. latest articles - Fri, 03/31/2017 - 10:09
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00428A, PaperGozde Oktem, Karin Sahre, Brigitte Voit, Rainer Jordan, Anton Kiriy
A series of fully conjugated oligo(3-hexylthiophene)s bearing different starting- and end-groups were synthesized by means of externally initiated Kumada catalyst-transfer polymerization (KCTP) and Grignard Metathesis Polymerization (GRIM). The kind of...
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Categories: Polymer Science News

Selective monophosphorylation of chitosan via phosphorus oxychloride

RSC - Polym. Chem. latest articles - Fri, 03/31/2017 - 10:09
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00123A, PaperDakota Suchyta, Robert Soto, Mark Schoenfisch
Chitosan was selectively monophosphorylated via reaction with phosphorus oxychloride (POCl3) to enhance water solubility while avoiding polyphosphate formation. The use of POCl3 resulted in negligible product degradation (i.e., breakdown of...
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Categories: Polymer Science News

End-chain fluorination of polyesters favors perfluorooctyl bromide encapsulation into echogenic PEGylated nanocapsules

RSC - Polym. Chem. latest articles - Fri, 03/31/2017 - 08:09
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY00400A, PaperSophie Houvenagel, Guilherme Fadel Picheth, Camille Dejean, Annie Brulet, Alexis Chenneviere, Olivier Couture, Nicolas Huang, Laurence Moine, Nicolas Tsapis
Perfluorinated end-capped polylactides (PLAs) with various perfluorinated chain lengths from C3F7 to C13F27 were synthesized and formulated into PEGylated nanocapsules of perfluorooctyl bromide (PFOB) to be used as ultrasound contrast...
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Categories: Polymer Science News

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