典型文献
Living Copolymerization of EOVE and MOVE:Fast Flow Synthesis and Thermal Responsive Behavior
文献摘要：
Random and block copolymers of 2-methoxyethyl vinyl ether(MOVE)and 2-ethoxyethyl vinyl ether(EOVE)were synthesized within 180 s via IBVE-HCl/SnCl4 initiating system in the presence of THF in a microflow system.The polymers can be produced continuously and efficiently with extremely narrow molecular weight distributions(Mw/Mn=1.09-1.18)even at the existence of pendant oxyethylene units.Polymerization rate can be accelerated by reducing THF to very low concentration([THF]=50 mmol/L),reaching conversions over 60％and 70％in 60 s for EOVE and MOVE,respectively.Random copolymers poly(MOVE100x-r-EOVE100(1-x))(x=0.25,0.5,0.75)experienced very sensitive phase separation process,of which phase separation temperature(Tps)can be adjusted between 20 and 70℃by controlling monomer composition.On the other hand,thermally induced phase separation of diblock copolymers poly(MOVE100-b-EOVE100)was not so sensitive as its random copolymer counterpart.Relatively bigger difference between phase separation temperatures of heating and cooling process(ATps)was found for diblock copolymer.
文献关键词：
中图分类号：
作者姓名：
Yu-Hang He;Dan Xie;Yang-Cheng Lu
作者机构：
State Key Laboratory of Chemical Engineering,Department of Chemical Engineering,Tsinghua University,Beijing 100084,China
文献出处：
引用格式：
[1]Yu-Hang He;Dan Xie;Yang-Cheng Lu-.Living Copolymerization of EOVE and MOVE:Fast Flow Synthesis and Thermal Responsive Behavior)[J].高分子科学（英文版）,2022(10):1193-1200
A类：
EOVE,MOVE,methoxyethyl,ethoxyethyl,IBVE,oxyethylene,MOVE100x,EOVE100,Tps,MOVE100,ATps
B类：
Living,Copolymerization,Fast,Flow,Synthesis,Thermal,Responsive,Behavior,Random,copolymers,vinyl,ether,were,synthesized,within,via,HCl,SnCl4,initiating,system,presence,THF,microflow,can,produced,continuously,efficiently,extremely,narrow,molecular,weight,distributions,Mw,Mn,even,existence,pendant,units,Polymerization,accelerated,by,reducing,very,concentration,reaching,conversions,over,respectively,experienced,sensitive,phase,separation,process,which,adjusted,between,controlling,monomer,composition,On,other,hand,thermally,induced,diblock,was,not,so,random,counterpart,Relatively,bigger,difference,temperatures,heating,cooling,found
AB值：
0.502468
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