Proton-Coupled Mechanochemical Transduction: A Mechanogenerated Add

被引：187

作者：

Diesendruck, Charles E. ^{[1
,2
]}

Steinberg, Brian D. ^{[1
,2
]}

Sugai, Naoto ^{[1
,2
]}

Silberstein, Meredith N. ^{[1
,3
]}

Sottos, Nancy R. ^{[1
,3
]}

White, Scott R. ^{[1
,4
]}

Braun, Paul V. ^{[1
,3
]}

Moore, Jeffrey S. ^{[1
,2
]}

机构：

[1] Univ Illinois, Beckman Inst Adv Sci & Technol, Urbana, IL 61801 USA

[2] Univ Illinois, Dept Chem, Urbana, IL 61801 USA

[3] Univ Illinois, Dept Mat Sci & Engn, Urbana, IL 61801 USA

[4] Univ Illinois, Dept Aerosp Engn, Urbana, IL 61801 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2012年 / 134卷 / 30期

基金：

美国国家科学基金会;

关键词：

POLYMERS; DIMETHYLANILINE; POLYMERIZATION; CATALYSTS;

D O I：

10.1021/ja305645x

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A novel mechanophore with acid-releasing capability is designed to produce a simple catalyst for chemical change in materials under mechanical stress. The mechanophore, based on a gem-dichlorocyclopropanated indene, is synthesized and used as a cross-linker in poly(methyl acrylate). Force-dependent rearrangement is demonstrated for cross-linked mechanophore samples loaded in compression, while the control shows no significant response. The availability of the released acid is confirmed by exposing a piece of insoluble compressed polymer to a pH indicator solution. The development of this new mechanophore is the first step toward force-induced remodeling of stressed polymeric materials utilizing acid-catalyzed cross-linking reactions.

引用

页码：12446 / 12449

页数：4

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