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Macromol. Rapid Commun. 7/2018
Author(s) -
Hou Guohui,
Wang Fengle,
Qu Zhe,
Cheng Zhiqiang,
Zhang Yingchao,
Cai Shisheng,
Xie Tao,
Feng Xue
Publication year - 2018
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201870018
Subject(s) - crystallization , intermolecular force , solvent , swelling , materials science , molecule , polymer , polymer chemistry , chemical engineering , chemical physics , chemistry , organic chemistry , composite material , engineering
Front Cover : A sensitive, solvent‐responsive semi‐crystalline polymer actuator (represented by the yellow film) is presented by Xue Feng and co‐workers in article number 1700716 . Driven by organic solvent vapor such as ethyl acetate (depicted by transparent bubbles), it deforms with large‐scale locomotion. The reversible reaction is based on the mechanism of swelling‐crystallization conversion. When enough solvent molecules are adsorbed, the intermolecular interactions between crystalline chains are broken; at the same time, new intermolecular interactions can integrate between solvent molecules and crystalline chains. Sphaerocrystals disappear and appear during the swelling‐crystallization conversion.