TY - JOUR
T1 - Reactive Compatibilization of Polylactide/Polypropylene Blends
AU - Xu, Yuewen
AU - Loi, Jesse
AU - Delgado, Paula
AU - Topolkaraev, Vasily
AU - McEneany, Ryan J.
AU - Macosko, Christopher W.
AU - Hillmyer, Marc A.
N1 - Publisher Copyright:
© 2015 American Chemical Society.
PY - 2015/6/17
Y1 - 2015/6/17
N2 - 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.
AB - 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.
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U2 - 10.1021/acs.iecr.5b00882
DO - 10.1021/acs.iecr.5b00882
M3 - Article
AN - SCOPUS:84935026896
SN - 0888-5885
VL - 54
SP - 6108
EP - 6114
JO - Industrial and Engineering Chemistry Research
JF - Industrial and Engineering Chemistry Research
IS - 23
ER -