典型文献
Stretching Elasticity and Flexibility of Single Polyformaldehyde Chain
文献摘要：
In this work,the single-chain elasticity of polyformaldehyde(POM)is studied,for the first time,by employing atomic force microscopy(AFM)-based single molecule force spectroscopy(SMFS).We find that the single-chain elasticity of POM in a nonpolar organic solvent(nonane)can be described well by a theoretical model(QM-FRC model),when the rotating unit length is 0.144 nm(C-O bond length).After comparison,POM is more flexible than polystyrene(a typical polymer with C-C backbone)at the single-chain level,which is reasonable since the C-O bond has a lower rotation barrier than C-C bond.This result indicates that the flexibility of a polymer chain can be tuned by the C-O bond proportion in backbone,which casts new light on the rational design of new synthetic polymers in the future.
文献关键词：
中图分类号：
作者姓名：
Jin-Xia Yang;Hu-Jun Qian;Zheng Gong;Zhong-Yuan Lu;Shu-Xun Cui
作者机构：
Key Laboratory of Advanced Technologies of Materials(Ministry of Education),Southwest Jiaotong University,Chengdu 610031,China;State Key Laboratory of Supramolecular Structure and Materials,Institute of Theoretical Chemistry,Jilin University,Changchun 130023,China;School of Life Science and Engineering,Southwest Jiaotong University,Chengdu 610031,China
文献出处：
引用格式：
[1]Jin-Xia Yang;Hu-Jun Qian;Zheng Gong;Zhong-Yuan Lu;Shu-Xun Cui-.Stretching Elasticity and Flexibility of Single Polyformaldehyde Chain)[J].高分子科学（英文版）,2022(04):333-337
A类：
Polyformaldehyde,polyformaldehyde
B类：
Stretching,Elasticity,Flexibility,Single,Chain,In,this,work,single,chain,elasticity,POM,studied,first,by,employing,atomic,force,microscopy,AFM,molecule,spectroscopy,SMFS,We,find,that,nonpolar,organic,solvent,nonane,can,described,well,theoretical,model,QM,FRC,when,rotating,unit,length,bond,After,comparison,more,flexible,than,polystyrene,typical,backbone,level,which,reasonable,since,has,lower,rotation,barrier,This,result,indicates,flexibility,tuned,proportion,casts,new,light,rational,design,synthetic,polymers,future
AB值：
0.630262
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