Electronic beam radiopolymerization process of directly synthesizing pH sensitive polymer hydrogel
Title：
Electronic beam radiopolymerization process of directly synthesizing pH sensitive polymer hydrogel
Application Number：
 200610144008
Application Date：
 2006/11/24
Announcement Date：
 2007/06/06
Pub. Date：
Publication Number：
 1974609
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 C08F 2/52, C08F 20/06
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Ruan Weiqing, Wang Xiaogong, He Tao, Chen Chaoren
Key Words：
 Electronic beam, radiopolymerization, pH sensitive polymer hydrogel
Abstract：
 The present invention is electronic beam radiopolymerization process of synthesizing pH sensitive hydrogel directly, and belongs to the field of pH sensitive hydrogel preparing technology. Material monomer, cross-linking agent and additive in the weight ratio of 75-99.7 to 0.1- 25 to 0.1-10 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 pH sensitive hydrogel. The present invention has the features of low power consumption, simple technological process, high polymerization efficiency, no waste water pollution, low cost, normal temperature and normal pressure operation, etc.
Claim：
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PCT：
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