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Issue 36, 2018
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A rapidly recoverable shape memory polymer with a topologically well-controlled poly(ethyl methacrylate) structure

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Abstract

Many of the unique properties of a conventionally crosslinked shape memory network are not found at the same time, and this is a large challenge for the development of advanced shape memory functional materials. In this work, a topologically well-controlled network shape memory poly(ethyl methacrylate) (CN-SMPEMA) is designed and fabricated by introducing two tetra-armed functional structures simultaneously as well-defined structure units to promote switch segment and net-point uniform distribution via the combined technology of the unique controllable atom transfer radical polymerization (ATRP) and copper(I)-catalyzed azide–alkyne cycloaddition (CuAAC). Compared with conventionally crosslinked networks, the as-prepared CN-SMPEMA not only exhibits a combination of excellent mechanical properties, shape fixity, shape recovery ratios and outstanding cycling stability, but also displays rapid recoverability. Additionally, a feasible molecular mechanism for the shape memory effect of the CN-SMPEMA system is analyzed and proposed. We anticipate that such a topologically well-defined network shape memory material with multiple excellent properties will broaden the practical application range of acrylate-based shape memory polymer materials.

Graphical abstract: A rapidly recoverable shape memory polymer with a topologically well-controlled poly(ethyl methacrylate) structure

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Publication details

The article was received on 09 Jul 2018, accepted on 07 Aug 2018 and first published on 09 Aug 2018


Article type: Communication
DOI: 10.1039/C8SM01404C
Citation: Soft Matter, 2018,14, 7302-7309
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    A rapidly recoverable shape memory polymer with a topologically well-controlled poly(ethyl methacrylate) structure

    J. Lai, X. Li, R. Wu, J. Deng, Y. Pan, Z. Zheng and X. Ding, Soft Matter, 2018, 14, 7302
    DOI: 10.1039/C8SM01404C

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