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Thesis Advisor范正
Degree Grantor中国科学院研究生院
Other AbstractNonionic and ionic crosslinked polyacrylamide gels have been synthesized and studied in this research work. Three main factors which influence gel's swelling property have been investigated. They are the degree of ionization, the degree of crosslinking and the amount of water used in synthesis process. As the degree of ionization and the amount of water increase, or the degree of crosslinking decreases, the swelling ratio will increase. It is first noticed and studied in this paper that the amount of water has an effect on gel's swelling property. By means of theoretical analysis and experimental results, semi-empirical and empirical relations of gel's swelling ratio with regard to nonionic and ionic gels have been obtained respectively. The pH-sensitive character of ionic gels is observed, and the factors which influence gel's collapse are analysed as well. Dilute aqueous solutions of α-amylase and dextran can be effectively concentrated by gel extraction. The extraction efficiency reduces as the solution concentration increases.
Document Type学位论文
Recommended Citation
GB/T 7714
王致. 凝胶的性质及其在生化分离中的应用[D]. 中国科学院研究生院,1989.
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