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Cover Image, Volume 58, Issue 24
Publication year - 2020
Publication title -
journal of polymer science
Language(s) - English
Resource type - Reports
eISSN - 2642-4169
pISSN - 2642-4150
DOI - 10.1002/pol.20200832
Subject(s) - polylactic acid , cover (algebra) , toughness , volume (thermodynamics) , citation , polymer , computer science , materials science , polymer science , composite material , world wide web , physics , engineering , mechanical engineering , quantum mechanics
Physical aging embrittles poly(lactide acid) (PLA), an eco‐friendly, biocompatible, and biodegradable polymer. Freshly hot pressed polylactic acid has a large rupturing strain, breaking at small deformation after aging for several hours at room temperature. The application of poststretching onto PLA, however, can increase its toughness and mechanical stability, as shown by Shengqiang Cai and colleagues in the article on page 3488. (DOI: 10.1002/pol.20200526 )