Supertough and Transparent Poly(lactic acid) Nanostructure Blends with Minimal Stiffness Loss.

ABSTRACT: This contribution is an attempt to explore the effectiveness of a series of newly obtained thermoplastic elastomers (TPEs) as a toughening agent for modifying poly(lactic acid) (PLA). The TPEs, including ionically modified isotactic polypropylene-graft-PLA (iPP-g-PLA) copolymers with explicit graft length, graft density, and ionic group content, and an iPP-g-PLA copolymer with a very high molecular weight and explicit graft density, were elaborately designed and synthesized. The semicrystal or rubbery copolymer backbone originated from iPP was designed to improve the toughness and maintain a relatively high strength, while the grafted PLA side chain was to ensure a high level of compatibility with the PLA matrix. To obtain further enhancement in in

SUBMITTER: Li Z 

PROVIDER: S-EPMC7288571 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature