Reactive Compatibilization of Polylactide/Polypropylene Blends

Yuewen Xu, Jesse Loi, Paula Delgado, Vasily Topolkaraev, Ryan J. McEneany, Christopher W. Macosko, Marc A. Hillmyer

Research output: Contribution to journalArticlepeer-review

69 Scopus citations

Abstract

Polylactide (PLA) was melt blended with either polypropylene (PP) or a polypropylene based elastomer (PBE, Vistamaxx) in an effort to improve its mechanical properties. An ethylene-glycidyl methacrylate-methyl acrylate terpolymer (PEGMMA, Lotader) was utilized as compatibilizer through coupling to the end groups of PLA. Graft copolymers formed enhanced the adhesion between PLA and polyolefin phases and lowered the interfacial tension. The morphological, mechanical, and rheological properties of the PLA/polyolefin compatibilized blends were investigated, and the blends exhibited substantial improvement in elongation at break and tensile toughness as compared to the corresponding binary blends. The remarkable efficacy of PEGMMA as a reactive compatibilizing agent allows the bridging of two immiscible but important classes of thermoplastics, polylactide and polypropylene, and the production of ductile PLA/PP blend materials.

Original languageEnglish (US)
Pages (from-to)6108-6114
Number of pages7
JournalIndustrial and Engineering Chemistry Research
Volume54
Issue number23
DOIs
StatePublished - Jun 17 2015

Fingerprint Dive into the research topics of 'Reactive Compatibilization of Polylactide/Polypropylene Blends'. Together they form a unique fingerprint.

Cite this