典型文献
Janus Polymerization:A One-Shot Approach towards Amphiphilic Multiblock Poly(ester-acetal)s Directly from 1,3-Dioxolane with ε-Caprolactone
文献摘要：
Janus polymerization consists of anionic and cationic ring opening polymerizations(AROP and CROP)at the two ends of a single propagating polymer chain,followed by a self-triggered chain extension generating multiblock copolymers(MBCPs)in one step.In the contribution,Janus polymerization by Tm(OTf)3 or Er(OTf)3 catalyst with an epoxy initiator is applied to synthesize MBCPs of semi-crystalline poly(ε-caprolactone)(PCL)blocks from coordinated AROP and poly(1,3-dioxolane-co-ε-caprolactone)(P(DO-co-CL))blocks from CROP of DO with CL.Meanwhile,amorphous random copolymers[P(DO-r-CL)]are synthesized as control by employing other rare earth triflates[RE(OTf)3,RE=Y,Nd,Gd and Lu]as catalysts or in the absence of an initiator via CROP.On account of the distinguishable chemical structures and thermal properties between Janus MBCPs and cationic random copolymers,Janus features are confirmed including the CROP and AROP at a single propagating chain.The resultant amphiphilic copolymers self-assemble to nanoparticles in aqueous solution with designable diameters with the corresponding ratios of hydrophilic and hydrophobic seg-ments.MBCPs exhibit good shape memory properties with appropriate deformation temperature close to human body's,providing a prospect on the applications in biomedical devices.
文献关键词：
中图分类号：
作者姓名：
Huan Qiu;Ting Shen;Zhening Yang;Feng Wu;Xiaohong Li;Yingfeng Tu;Jun Ling
作者机构：
MOE Key Laboratory of Macromolecular Synthesis and Functionalization,Department of Polymer Science and Engineering,Zhejiang University,Hangzhou,Zhejiang 310027,China;College of Chemistry,Chemical Engineering and Materials Science,Soochow University,Suzhou,Jiangsu 215123,China
文献出处：
引用格式：
[1]Huan Qiu;Ting Shen;Zhening Yang;Feng Wu;Xiaohong Li;Yingfeng Tu;Jun Ling-.Janus Polymerization:A One-Shot Approach towards Amphiphilic Multiblock Poly(ester-acetal)s Directly from 1,3-Dioxolane with ε-Caprolactone)[J].中国化学（英文版）,2022(06):705-712
A类：
Amphiphilic,Multiblock,Dioxolane,Caprolactone,AROP,CROP,multiblock,MBCPs,triflates
B类：
Janus,Polymerization,One,Shot,Approach,towards,ester,acetal,Directly,from,consists,anionic,cationic,ring,opening,polymerizations,two,ends,single,propagating,chain,followed,by,self,triggered,extension,generating,copolymers,step,In,contribution,Tm,OTf,Er,epoxy,initiator,applied,semi,crystalline,caprolactone,PCL,blocks,coordinated,dioxolane,DO,Meanwhile,amorphous,random,synthesized,control,employing,other,rare,earth,RE,Nd,Gd,Lu,catalysts,absence,via,account,distinguishable,chemical,structures,thermal,properties,between,features,confirmed,including,resultant,amphiphilic,assemble,nanoparticles,aqueous,solution,designable,diameters,corresponding,ratios,hydrophilic,hydrophobic,seg,ments,exhibit,good,shape,memory,appropriate,deformation,temperature,close,human,body,providing,prospect,applications,biomedical,devices
AB值：
0.510957
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