Title:
【発明の名称】オレフィンのカルボカチオン重合用開始剤
Document Type and Number:
Japanese Patent JP2002505346
Kind Code:
A
Abstract:
A new class of initiators for inducing the cationic polymerization of olefins was discovered. These initiators, in conjunction with Lewis acids as coinitiators, effectively initiate the carbocationic polymerization of olefins. The new initiators are epoxides with the general formulawhere R1, R2 and R3 are hydrogen, alkyl, aryl or aralkyl groups, and can be the same or different, and i is a positive whole number. The Lewis acid has the general formula of MtXn, where M is titanium, aluminum, boron or tin, X is a halogen, an alkyl or an alcoxy or a mixture thereof. The process is a carbocationic process, which can be living or non-living, at a temperature of from about 0 to -80 C. The polymer produced can be a homo- or copolymer (random or block) carrying hydroxy functional groups.
Inventors:
Pascus Judithie.
Application Number:
JP2000524332A
Publication Date:
February 19, 2002
Filing Date:
December 03, 1998
Export Citation:
Assignee:
The University of Western Ontario
International Classes:
C08F2/38; C08F4/00; C08F4/16; C08F10/00; C08F10/10; C08F297/00; (IPC1-7): C08F4/00; C08F2/38; C08F10/10; C08F297/00
Domestic Patent References:
| JPS6462308A | 1989-03-08 | |||
| JPH05331243A | 1993-12-14 | |||
| JPH06199952A | 1994-07-19 | |||
| JPH09510236A | 1997-10-14 | |||
| JPH02178304A | 1990-07-11 | |||
| JPH08253531A | 1996-10-01 | |||
| JPH07268047A | 1995-10-17 | |||
| JPH08269118A | 1996-10-15 | |||
| JPH04183702A | 1992-06-30 | |||
| JPH10510577A | 1998-10-13 |
Foreign References:
| GB682067A | 1952-11-05 | |||
| US2879276A | 1959-03-24 |
Other References:
FAUST, RUDOLF; IVAN, BELA; KENNEDY, JOSEPH P.: "Living carbocationic polymerization. XXXVIII. On the nature of the active species in isobutylene a", JOURNAL OF MACROMOLECULAR SCIENCE, CHEMISTRY, vol. 第A28巻、第1号, JPN6008055690, 1991, pages 1 - 13, ISSN: 0001173339
BENJAMIN L. VAN DUUREN AND F. LOUIS SCHMITT: "Epoxidation and Cyclization of Squalene", JOURNAL OF ORGANIC CHEMISTRY, vol. 第25巻, 第10号, JPN6008056220, 1960, pages 1761 - 1765, ISSN: 0001173340
BENJAMIN L. VAN DUUREN AND F. LOUIS SCHMITT: "Epoxidation and Cyclization of Squalene", JOURNAL OF ORGANIC CHEMISTRY, vol. 第25巻, 第10号, JPN6008056220, 1960, pages 1761 - 1765, ISSN: 0001173340
Attorney, Agent or Firm:
Tsutomu Adachi (1 person outside)