Title:
FAST-RESPONSE THERMOPLASTIC SHAPE-MEMORY POLYIMIDE AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2015/176544
Kind Code:
A1
Abstract:
A fast-response thermoplastic shape-memory polyimide and a preparation method therefor, related to a polyimide and a preparation method therefor. The present invention aims to solve the problem in high-temperature conditions of slow shape recovery, poor stability, and poor mechanical properties of a shape-memory polymer prepared by utilizing an existing method. The structural formula of the polyamide of the present invention is as represented by formula (I). The preparation method is: 1. preparation of a diamine solution; 2. preparation of an anhydride-terminated high molecular weight polyamic acid; 3. preparation of a viscous sol-gel; and, 4. preparation of the thermoplastic shape-memory polyimide. The thermoplastic shape-memory polyimide prepared per the present invention is provided with a very fast shape recovery rate and improved shape-memory effect. The present invention is applicable in the field of polyimide preparation.
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Inventors:
LENG JINGSONG (CN)
XIAO XINLI (CN)
LIU YANJU (CN)
KONG DEYAN (CN)
XIAO XINLI (CN)
LIU YANJU (CN)
KONG DEYAN (CN)
Application Number:
PCT/CN2015/070280
Publication Date:
November 26, 2015
Filing Date:
January 07, 2015
Export Citation:
Assignee:
HARBIN INST OF TECHNOLOGY (CN)
International Classes:
C08G73/10
Foreign References:
| JP2012224697A | 2012-11-15 | |||
| KR20090067561A | 2009-06-25 | |||
| US20100063241A1 | 2010-03-11 | |||
| CN103980491A | 2014-08-13 |
Other References:
See also references of EP 3147306A4
Attorney, Agent or Firm:
HARBIN SONGHUAJIANG PATENT TRADEMARK OFFICE (CN)
哈尔滨市松花江专利商标事务所 (CN)
哈尔滨市松花江专利商标事务所 (CN)
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