Media type: E-Article Title: Thermal Catalytic Depolymerization of Poly(L-Lactic Acid) Oligomer into LL-Lactide: Effects of Al, Ti, Zn and Zr Compounds as Catalysts Contributor: NODA, Masaki; OKUYAMA, Hisashi imprint: Pharmaceutical Society of Japan, 1999 Published in: Chemical and Pharmaceutical Bulletin Language: English DOI: 10.1248/cpb.47.467 ISSN: 0009-2363; 1347-5223 Origination: Footnote: Access State: Open Access