典型文献
Exploring the Nanomechanical Properties of a Coordination-bond Based Supramolecular Polymer
文献摘要：
Due to their dynamic nature and strength tunability,metallo-supramolecular polymers have been introduced into various materials.The mechanical strength of the metallo-supramolecular polymers in the system directly influences the mechanical properties(e.g.,the toughness)of the materials.Therefore,it is necessary to explore the mechanical behavior of the metallo-supramolecular polymers.Herein,we present a single-molecule method to systematically explore the chain structure and mechanical properties of metallo-supramolecular polymer by using a loop protected architecture.Notably,we found that the mechanical stability of the individual chain,which is determined by the strength of terpyridine-Fe2+-terpyridine(tpy-Fe2+-tpy)bonds,was about 0.6-1.0 nN,depending on the pulling speed.This value is around three times higher than those measured using old methods.In addition,the unique loop protected structure further reduces the interference of non-specific polymer-AFM tip(or polymer-substrate)interactions on the quantification of the actual strength and kinetic parameter of noncovalent interactions in supramolecular polymers.Furthermore,the single chain flexibility of the metallo-supramolecular polymer was investigated and found to be comparable to the corresponding covalent analogues.Our findings provide a new way to explore the force response of supramolecular polymers composed of metal-ligand interactions and will be useful for the design of metallo-supramolecular polymer-based functional materials with tailored mechanical properties.
文献关键词：
中图分类号：
作者姓名：
Rui-Xiang Yao;Jun-Juan Shi;Ke-Huan Li;Xin Liu;Hou-Yu Zhang;Ming Wang;Wen-Ke Zhang
作者机构：
State Key Laboratory of Supramolecular Structure and Materials,College of Chemistry,Jilin University,Changchun 130012,China;Institute of Theoretical Chemistry,Collegeof Chemistry,Jilin University,Changchun 130012,China
文献出处：
引用格式：
[1]Rui-Xiang Yao;Jun-Juan Shi;Ke-Huan Li;Xin Liu;Hou-Yu Zhang;Ming Wang;Wen-Ke Zhang-.Exploring the Nanomechanical Properties of a Coordination-bond Based Supramolecular Polymer)[J].高分子科学（英文版）,2022(12):1613-1622
A类：
terpyridine,tpy
B类：
Exploring,Nanomechanical,Properties,Coordination,Based,Supramolecular,Polymer,Due,their,dynamic,nature,strength,tunability,metallo,supramolecular,polymers,have,been,introduced,into,various,materials,directly,influences,properties,toughness,Therefore,necessary,explore,behavior,Herein,we,present,single,molecule,systematically,chain,structure,by,using,loop,protected,architecture,Notably,found,that,stability,individual,which,determined,Fe2+,bonds,was,about,nN,depending,pulling,speed,This,value,around,three,times,higher,than,those,measured,old,methods,In,addition,unique,further,reduces,interference,specific,AFM,tip,substrate,interactions,quantification,actual,kinetic,parameter,noncovalent,Furthermore,flexibility,investigated,comparable,corresponding,analogues,Our,findings,provide,new,way,force,response,composed,ligand,will,useful,design,functional,tailored
AB值：
0.517332
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
