Electronic beam radiopolymerization process of directly synthesizing temperature sensitive hydrogel
Title：
Electronic beam radiopolymerization process of directly synthesizing temperature sensitive hydrogel
Application Number：
 200610144007
Application Date：
 2006/11/24
Announcement Date：
 2007/06/06
Pub. Date：
Publication Number：
 1974608
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 C08F 2/52, C08F 20/56, C08K 5/20
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Ruan Weiqing, Wang Xiaogong
Key Words：
 Electronic beam, radiopolymerization, temperature sensitive hydrogel
Abstract：
 The present invention is electronic beam radiopolymerization process of synthesizing temperature sensitive hydrogel directly, and belongs to the field of temperature sensitive hydrogel preparing technology. Material monomer, cross-linking agent and additive in the weight ratio of 75-98.5 to 0.1-1 to 1-10 are dissolved in deionized water and polymerized through electron radiation to form cross-linked polymer. The cross-linked polymer is then extracted in a Soxhlet extractor with boiled deionized water for 24 hr and dried in a vacuum oven to obtain the temperature sensitive hydrogel. The temperature sensitive hydrogel may be used in medicine controlled releasing system, memory element switch, artificial muscle, chemical separation and other field. The present invention has the features of simple technological process, high polymerization efficiency, less pollution, low cost, normal temperature operation, etc.
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