典型文献
Reversible Plasticity Shape Memory Effect in SEBS/Crystalllizable Paraffin:lnfluence of Paraffin Content
文献摘要：
Polymers with reversible plasticity shape memory effect(RPSME)have attracted considerable attention due to their simple programming and large deformation.However,the exact mechanisms of RPSME are still not thoroughly understood.In this work,the RPSME of SEBS/crystalllizable paraffin was investigated by comparatively analyzing the performances and microstructures of samples with different paraffin content.It was found the shape fixing ratios(Rfs)of samples increased with the paraffin content,and interestingly,a significant improvement in Rf was observed when the paraffin content exceeded 60 wt％.Tensile test results showed that the deformation characteristics of samples changed from elastic to plastic as the paraffin content increased above 60 wt％.By exploring the crystallization behaviors of paraffin in various SEBS/paraffin samples,it was revealed that the microstructures of SEBS/paraffin were different when the paraffin content was below 50 wt％and above 60 wt％.In samples with low paraffin content(below 50 wt％),nearly all paraffin was co-crystallized with.ethylene-co-butylene(EB)chains and its crystallization was severely restricted;while in samples with high paraffin content(above 60 wt％),"excess"paraffin appeared and this part of paraffin crystallized on the template of the EB/paraffin co-crystals,which might be responsible for the elastic-to-plastic transition and the sharp increase in Rf.Based on the above results,a possible structural model was proposed to explain the exact mechanism of RPSME in SEBS/paraffin.
文献关键词：
中图分类号：
作者姓名：
Shao-Quan Zhao;Jia-Chun Feng
作者机构：
State Key Laboratory of Molecular Engineering of Polymers,Department of Macromolecular Science,Fudan University,Shanghai200433,China;Yiwu Research Institute of Fudan University,Yiwu 322000,China
文献出处：
引用格式：
[1]Shao-Quan Zhao;Jia-Chun Feng-.Reversible Plasticity Shape Memory Effect in SEBS/Crystalllizable Paraffin:lnfluence of Paraffin Content)[J].高分子科学（英文版）,2022(12):1697-1705
A类：
Crystalllizable,lnfluence,RPSME,crystalllizable,Rfs
B类：
Reversible,Plasticity,Shape,Memory,Effect,SEBS,Paraffin,Content,Polymers,reversible,plasticity,shape,memory,effect,have,attracted,considerable,attention,due,their,simple,programming,large,deformation,However,exact,mechanisms,still,not,thoroughly,understood,In,this,work,paraffin,was,investigated,by,comparatively,analyzing,performances,microstructures,samples,different,content,It,found,fixing,ratios,increased,interestingly,significant,improvement,observed,when,exceeded,wt,Tensile,test,results,showed,that,characteristics,changed,from,elastic,above,By,exploring,crystallization,behaviors,various,revealed,were,below,nearly,crystallized,ethylene,butylene,chains,its,severely,restricted,while,high,excess,appeared,part,template,crystals,which,might,responsible,transition,sharp,Based,possible,structural,model,proposed,explain
AB值：
0.452857
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