教師資料查詢 | 類別: 期刊論文 | 教師: 董崇民 Don, Trong-ming (瀏覽個人網頁)

標題:Kinetic model of hyperbranched polymers formed by the polymerization of AB2 monomer with a substitution effect
學年91
學期1
出版(發表)日期2002/10/01
作品名稱Kinetic model of hyperbranched polymers formed by the polymerization of AB2 monomer with a substitution effect
作品名稱(其他語言)
著者Cheng, Kuo-chung; 董崇民; Don, Trong-ming; Guo, Wenjeng; Chuang, Tsu-hwang
單位淡江大學化學工程與材料工程學系
出版者Elsevier
著錄名稱、卷期、頁數Polymer 43(23), pp.6315-6322
摘要Hyperbranched polymers obtained by the polymerization of AB2-type monomer with a substitution effect on the B2 groups were studied by means of the kinetic model. In this polymerization with the substitution effect, if one of the B2 group reacts first, the reactivity of the remaining unreacted B group will be changed. The profiles of the degree of polymerization, polydispersity, degree of branching, and structural units of the hyperbranched polymers with the conversions were all calculated by the generating function method. It is shown that the weight-average degree of polymerization and the degree of branching of the hyperbranched polymers having substitution effect differ from that with equal reactivity of the B2 groups. If the substitution effect causes an increase in the rate constant after one of the B2 groups has reacted, a broader molecular weight distribution and a higher degree of branching are observed.
關鍵字Hyperbranched polymer;Substitution effect;Generating function
語言英文
ISSN0032-3861
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