Jin, HJ Chin, IJ Kim, MN Kim, SH Yoon, JS 2024-01-21T14:38:41Z 2024-01-21T14:38:41Z 2021-09-01 2000-01 0014-3057 https://pubs.kist.re.kr/handle/201004/141723 Poly(L-lactic acid) (PLLA), a brittle biodegradable thermoplastic polymer, was blended with rubbery poly(cis-1,4-isoprene) (PIP). The PLLA/PIP blend, however, was incompatible as indicated by two T-g's, each stemming from PLLA and PIP domains, respectively. Since PLLA was known to be compatible with poly(vinyl acetate) (PVAc), PIP was grafted with vinyl acetate monomer to form PIP-g-PVAc, which was then blended with PLLA. The blend of PLLA and PIP-g-PVAc had two T-g's. The lower T-g, which was due to PIP phase, did not vary with the blend composition, while the higher T-g, which was due to PLLA rich phase, decreased with an increase in the graft copolymer content. The PVAc moiety of the graft copolymer seems to have been mixed in with PLLA. The tensile properties of the PLLA/PIP-g-PVAc blend were much superior to those of the PLLA/PIP blend. (C) 1999 Elsevier Science Ltd. All rights reserved. English PERGAMON-ELSEVIER SCIENCE LTD CRYSTALLIZATION MISCIBILITY ACRYLATE Blending of poly(L-lactic acid) with poly(cis-1,4-isoprene) Article 10.1016/S0014-3057(99)00041-5 1 EUROPEAN POLYMER JOURNAL, v.36, no.1, pp.165 - 169 EUROPEAN POLYMER JOURNAL 36 1 165 169 scie scopus 000083802400019 2-s2.0-0033692413 Polymer Science Polymer Science Article CRYSTALLIZATION MISCIBILITY ACRYLATE biodegradable poly(lactide) poly(isoprene) blending