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Ring‐Opening Polymerization of L ‐Lactides Catalyzed by Zinc–Sodium/Lithium Heterobimetallic Complexes in the Presence of Water
Author(s) -
Wang Lei,
Pan Xiaobo,
Yao Lihui,
Tang Ning,
Wu Jincai
Publication year - 2011
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201001283
Subject(s) - chemistry , polymerization , ring opening polymerization , zinc , polymer chemistry , lactide , monomer , lithium (medication) , yield (engineering) , ring (chemistry) , sodium , organic chemistry , polymer , medicine , materials science , metallurgy , endocrinology
Two heterobimetallic complexes, [(TBBP) 2 Zn][(Na) 2 (THF) 4 ] ( 3 ) and [(TBBP) 2 Zn][(Li) 2 (THF) 4 ] ( 4 ) can initiate the ring‐opening polymerization of L ‐lactide in a controlled fashion. Complex 3 can initiate the ring‐opening polymerization of unsublimed L ‐lactide under moist conditions even in the presence of H 2 O, to yield a high conversion and with controllable molecular weight.