Premium
High activity of rare earth tetrahydroborates for ring‐opening polymerization of ω‐pentadecalactone
Author(s) -
Nakayama Yuushou,
Watanabe Naoki,
Kusaba Keisuke,
Sasaki Kenta,
Cai Zhengguo,
Shiono Takeshi,
Tsutsumi Chikara
Publication year - 2011
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.33834
Subject(s) - polymerization , ring opening polymerization , neodymium , polymer chemistry , chemistry , rare earth , materials science , polymer , organic chemistry , mineralogy , physics , optics , laser
Ring‐opening polymerization of ω‐pentadecalactone (PDL) by tetrahydroborate complexes of rare earth metals, Ln(BH 4 ) 3 (THF) 3 (Ln = La ( 1 ), Nd ( 2 ), Y ( 3 )), was studied. These complexes showed high activity for PDL polymerization in THF at 60°C. Among the complexes 1 – 3 , the neodymium complex 2 was most active. The obtained poly(PDL) was demonstrated to be hydroxy‐telechelic by 1 H‐NMR and MALDI‐TOF MS spectroscopy. Biodegradation of the poly(PDL) in compost at 60°C was investigated, where 18% weight loss of the samples was observed after 280 days. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011