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Back Cover, Volume 131, Issue 19
Publication year - 2014
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.41126
Subject(s) - polylactic acid , elongation , cover (algebra) , polymer , polymer science , materials science , computer science , composite material , mechanical engineering , engineering , ultimate tensile strength
Shape‐recovery materials are expected to have numerous applications as ductile structural compounds that can recover their shape after significant deformations. Hirotaka Okamoto, Yoshihide Katagiri, Mitsuru Nakano, and Arimitsu Usuki report a new type of shape‐recovery polymer consisting of polylactic acid (PLA) derived from glucose compounded with a cinnamic acid ester derived from lignin. This shape‐recovery polymer exhibits a spontaneous but gradual recovery of its original dimensions, following elongation and release of stress, without the requirement for external stimulus. The cover shows the shape‐recovery polymer at various times ranging from before elongation to one day after elongation. This material may apply to energy‐absorbing and shape restoration automotive parts. DOI: 10.1002/app.41004