Polymerization of ε-caprolactone using bulky alkoxo-titanium complexes and structural analysis of [Ti(OBorneoxo)2Cl2(thf)2]

被引:14
作者
Perez, Yolanda
del Hierro, Isabel
Sierra, Isabel
Gomez-Sal, Pilar
Fajardo, Mariano
Otero, Antonio
机构
[1] Univ Rey Juan Carlos, Dept Tecnol Quim & Ambiental, ESCET, Madrid 28933, Spain
[2] Univ Rey Juan Carlos, Dept Quim Inorgan & Analit, ESCET, Madrid 28933, Spain
[3] Univ Castilla La Mancha, Fac Ciencias Quim, Dept Quim Inorgan Organ & Bioquim, E-13071 Ciudad Real, Spain
[4] Univ Alcala de Henares, Dept Quim Inorgan, E-28871 Alcala De Henares, Spain
关键词
titanium; alkoxo; ring opening polymerization; epsilon-caprolactone; X-ray structure determination;
D O I
10.1016/j.jorganchem.2006.03.019
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
A variety of bisalkoxo titanium dichloride THF adducts [Ti(OR)(2)Cl-2(thf)(2)] {OR = adamantanoxo (9), (1R,2S,5R)-(-)-menthoxo (10), (1S-endo)-(-)-borneoxo (11)} have been prepared and characterized by spectroscopic techniques. The molecular structure of It has been determined by single-crystal X-ray diffraction studies. The parent Lewis acid bisalkoxo titanium dichloride derivatives and related alkoxo complexes [Ti(OR)(2)(OPri)(2)](2) have been tested as initiators in ring-opening polymerization of epsilon-caprolactone and L-lactide. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:3053 / 3059
页数:7
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