Investigating the Dynamic Viscoelasticity of Single Polymer Chains using Atomic Force Microscopy

Liang Xiaobin; Nakajima Ken

摘要

ABSTRACT > In single‐molecule force spectroscopy (SMFS), many studies have focused on the elasticity and conformation of polymer chains, but little attention has been devoted to the dynamic properties of single polymer chains. In this study, we measured the energy dissipation and elastic properties of single polystyrene (PS) chains in toluene, methanol, and N , N ‐dimethylformamide using a homemade piezo‐control and data acquisition system externally coupled to a commercial atomic force microscope (AFM), which provided more accurate information regarding the dynamic properties of the PS chains. We quantitatively measured the chain length‐dependent changes in the stiffness and viscosity of a single chain using a phenomenological model consistent with the theory of viscoelasticity for polymer chains in dilute solution. The effective viscosity of a polymer chain can be determined using the Kirkwood model, which is independent of the intrinsic viscosity of the solvent and dependent on the interaction between the polymer and solvent. The results indicated that the viscosity of a single PS chain is dominated by the interaction between the polymer and solvent. ? 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2019 , 57, 1736–1743 </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract Type =“Main”XML：Lang =“en”> <标题类型=“main”>抽象</ title> > 在单分子力光谱（SMF）中，许多研究集中于聚合物链的弹性和构象，但很少注意单一聚合物链的动态性质。在该研究中，我们测量了甲苯，甲醇和甲苯中单个聚苯乙烯（PS）链的能量耗散和弹性性质 n </ i> 那 n </ i> - 使用外部耦合到商业原子力显微镜（AFM）的自制压电控制和数据采集系统的二甲基甲酰胺，其提供了关于PS链的动态特性的更准确的信息。我们使用与稀释溶液中的聚合物链的粘弹性理论一致的现象学模型定量测量单链刚度和粘度的链长依赖性变化。可以使用Kirkwood模型测定聚合物链的有效粘度，其与溶剂的特性粘度无关，并取决于聚合物和溶剂之间的相互作用。结果表明，单个PS链的粘度通过聚合物和溶剂之间的相互作用为主。还2019年Wiley期刊，Inc.J.Colom。 SCI。，B部分：聚合物。物理。 2019 </ b> ，57,1736-1743 </ p> </摘要> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-35627/'>《Journal of Polymer Science, Part B. Polymer Physics》</a> <b style="margin: 0 2px;">|</b><span>2019年第24期</span><b style="margin: 0 2px;">|</b><span>共8页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Liang Xiaobin&option=202" target="_blank" rel="nofollow">Liang Xiaobin;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Nakajima Ken&option=202" target="_blank" rel="nofollow">Nakajima Ken;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Department of Chemical Science and EngineeringSchool of Materials and Chemical Technology Tokyo Institute of Technology Ookayama 2‐12‐1 Meguro‐kuTokyo 152‐8552 Japan;</p> <p>Department of Chemical Science and EngineeringSchool of Materials and Chemical Technology Tokyo Institute of Technology Ookayama 2‐12‐1 Meguro‐kuTokyo 152‐8552 Japan;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/1185.html" title="高分子化学（高聚物）">高分子化学（高聚物）;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=atomic force microscopy&option=203" rel="nofollow">atomic force microscopy;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=dynamic viscoelasticity&option=203" rel="nofollow">dynamic viscoelasticity;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=effective viscosity&option=203" rel="nofollow">effective viscosity;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=single polymer chain&option=203" rel="nofollow">single polymer chain;</a> </p> <div class="translation"> 机译：原子力显微镜;动态粘弹性;有效粘度;单聚合物链; </div> </li> </ul> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" id="enpatent66">相似文献</h3> <div class="similaritytab clearfix"> <ul> <li class="active" >外文文献</li> <li >中文文献</li> <li >专利</li> </ul> </div> <div class="similarity_details"> <ul > <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704025811237.html">Investigating the Dynamic Viscoelasticity of Single Polymer Chains using Atomic Force Microscopy</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Liang Xiaobin&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Liang Xiaobin,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Nakajima Ken&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Nakajima Ken </a> <a href="/journal-foreign-35627/" target="_blank" rel="nofollow" class="tuijian_authcolor">Journal of Polymer Science, Part B. 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