Effect of Polymer Grafting Density on Mechanophore Activation at Heterointerfaces,ACS Macro Letters

当前位置： X-MOL 学术 › ACS Macro Lett. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Effect of Polymer Grafting Density on Mechanophore Activation at Heterointerfaces
ACS Macro Letters ( IF 5.1 ) Pub Date : 2016-06-23 00:00:00 , DOI: 10.1021/acsmacrolett.6b00389
Jun Li ₁ , Bin Hu ₂ , Ke Yang ₁ , Bin Zhao ₂ , Jeffrey S Moore ₁

Affiliation

Silica nanoparticles grafted with poly(methyl acrylate) chains whose anchor points are maleimide-anthracene cycloadducts were prepared at various grafting densities to demonstrate fundamental characteristics of mechanophore activation at heterointerfaces. The monotonically decreasing correlation between polymer grafting density and surface-bound maleimide-anthracene mechanophore activation was quantitatively elucidated and discussed. Presumably as a result of polymer–polymer interactions, polymer grafting density plays a significant role in heterogeneous mechanophore activation. The findings are a valuable guide in the design of efficient force-sensitive, damage-reporting polymer composites, where damage is often localized to the interface between the matrix and the reinforcing phase.

中文翻译：

聚合物接枝密度对异质界面机械载体活化的影响

在不同的接枝密度下制备了接枝有聚（丙烯酸甲酯）链的二氧化硅纳米粒子，以证明异质界面处机械载体活化的基本特征。定量阐明和讨论了聚合物接枝密度与表面结合的马来酰亚胺-蒽机械载体活化之间单调递减的相关性。据推测，由于聚合物 - 聚合物相互作用，聚合物接枝密度在异质机械载体活化中起重要作用。这些发现对于设计有效的力敏感、损伤报告聚合物复合材料具有宝贵的指导意义，其中损伤通常局限于基体和增强相之间的界面。

更新日期：2016-06-23

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南