典型文献
Chain-transfer-catalyst:strategy for construction of site-specific functional CO2-based polycarbonates
文献摘要：
Site-specific functional polymers are generally synthesized from functionalized chain transfer agents (CTA) in the presence of catalysts.However,the poor solubility or chemical inertness of CTAs may make polymerizations uncontrollable.Now,this issue is addressed by proposing a strategy of designing chain-transfer-catalyst (CTC) that combines catalyst and CTA into one.The occurrence of catalytic effect naturally triggers the chain transfer process to give catalyst-labeled polymers with well-defined structures.As a proof-of-concept,cobalt(Ⅲ) porphyrin catalysts with one,two and four hydroxyl groups act as efficient CTCs,giving the corresponding site-specific functional poly(propylene carbonate)s (PPC),diversifying the topology of polymers.Furthermore,porphyrin-capped PPCs with controllable Mn in the range of 1,000-16,800 g mol-1 were obtained by using monofunctional CTC (CTCOH).Moreover,different from traditional "catalyst+CTA" systems,a novel dynamic network transfer mechanism of CTCOH was proposed.This study provides a CTC strategy for the synthesis of site-specific functional polymers.
文献关键词：
中图分类号：
作者姓名：
Enhao Wang;Shunjie Liu;Han Cao;Chunwei Zhuo;Xianhong Wang;Fosong Wang
作者机构：
Key Laboratory of Polymer Ecomaterials,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China;University of Science and Technology of China,Hefei 230026,China;@@
文献出处：
引用格式：
[1]Enhao Wang;Shunjie Liu;Han Cao;Chunwei Zhuo;Xianhong Wang;Fosong Wang-.Chain-transfer-catalyst:strategy for construction of site-specific functional CO2-based polycarbonates)[J].中国科学:化学（英文版）,2022(01):162-169
A类：
polycarbonates,monofunctional,CTCOH,catalyst+CTA
B类：
Chain,transfer,strategy,construction,site,specific,Site,polymers,are,generally,synthesized,from,functionalized,chain,agents,presence,catalysts,However,poor,solubility,chemical,inertness,CTAs,may,make,polymerizations,uncontrollable,Now,this,issue,addressed,by,proposing,designing,that,combines,into,one,occurrence,catalytic,effect,naturally,triggers,process,give,labeled,well,defined,structures,proof,concept,cobalt,porphyrin,four,hydroxyl,groups,act,efficient,CTCs,giving,corresponding,propylene,diversifying,topology,Furthermore,capped,PPCs,Mn,range,were,obtained,using,Moreover,different,traditional,systems,novel,dynamic,network,mechanism,was,proposed,This,study,provides,synthesis
AB值：
0.58206
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