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Dual Photo/Thermo-Responsive polypeptoids

Chinese Journal of Polymer Science 2023年第1期41卷 24-31页

作者： Yu-Xuan Zhang Jie Huang Jun Zhang Ning Ren Gang-Sheng Tong Xin-Yuan Zhu School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative MoleculesResearch Institute of Polymer MaterialsShanghai Jiao Tong UniversityShanghai200240China

A series of polypeptoids with dual photo/thermo-responsiveness were prepared by incorporating both azobenzene(Azo)group and oligo(ethylene glycol)(OEG)segment into the side ***,the N-substituted-N-carboxyanhydride(NNCA)monomers with different Azo and OEG groups were synthesized,and then a single NNCA ring-openning polymerization was performed to afford dual-responsive polypeptoids without any post-polymerization *** ultra-violet/visible(UV/Vis)photo-responsive behaviors of the polypeptoids were achieved by cis-trans photoisomerization of the Azo group and confirmed by both ^(1)H-NMR and UV/Vis *** thermo-responsive behaviors were realized by both OEG segment and Azo group and confirmed by UV/Vis spectroscopy and dynamic light *** work demonstrated the synthetic pathway for dual responsive polypeptoids using NNCA monomers with two responsive groups and revealed the potential of polypeptoids as smart materials that could respond to different environmental stimuli.

关键词： Dual-responsive polymer polypeptoid Ring-opening polymerization

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Synthesis and self-assembly of poly(ethylene glycol)-block-poly(N-3-(methylthio)propyl glycine)and their oxidation-sensitive polymersomes

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Chinese Chemical Letters 2020年第7期31卷 1931-1935页

作者： Yangwei Deng Hui Chen Xinfeng Tao Sylvain Trepout Jun Ling Min-Hui Li Chimie ParisTech PSL University ParisCNRSInstitut de Recherche de Chimie ParisParis 75005France MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027China Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical TechnologyBeijing 100029China Institut Curie Inserm US43University Paris SaclayOrsay Cedex 91405France Shanghai Key Laboratory of Advanced Polymeric Materials School of Materials Science and EngineeringEast China University of Science and TechnologyShanghai 200237China

Amphiphilic block copolymers poly(ethylene glycol)-block-poly(N-3-(methylthio)propyl glycine)(PEGb-PMeSPG)were synthesized via ring-opening polymerization of N-3-(methylthio)propyl glycine Nthiocarboxyanhydride(MeSPG-NTA)initiated by amino-terminated *** self-assemblies of three PEG-b-PMeSPG copolymers with different PMeSPG block lengths were first prepared by nanoprecipitation method using THF and DMF,respectively,as the organic solvent,and their morphologies were studied by Cryo-EM and *** prepare polymersomes loaded with glucose oxidase(GOx),double emulsion method followed by extrusion treatment was *** oxidation-responsive disruption of polymersomes was achieved upon the introduction of glucose because of the oxidants generated insitu by GOx/glucose.

关键词： polypeptoid Self-assembly Polymersome Oxidation-responsive Glucose oxidase

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