High activity of rare earth tetrahydroborates for ring‐opening polymerization of ω‐pentadecalactone | Zendy

Nakayama Yuushou | Zendy; Watanabe Naoki | Zendy; Kusaba Keisuke | Zendy; Sasaki Kenta | Zendy; Cai Zhengguo | Zendy; Shiono Takeshi | Zendy; Tsutsumi Chikara | Zendy

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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

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