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:The Synthesis of Chitin-g-Poly(vinyl acetate) Copolymers with a Redox Initiator
學年91
學期1
出版(發表)日期2002/12/01
作品名稱The Synthesis of Chitin-g-Poly(vinyl acetate) Copolymers with a Redox Initiator
作品名稱(其他語言)
著者Don, Trong-ming; Chen, Yun-ru; Chiu, Wen-yen
單位淡江大學化學工程與材料工程學系
出版者Springer Netherlands
著錄名稱、卷期、頁數Journal of polymer research 9(4), pp.257-263
摘要Vinyl acetate monomer was graft polymerized onto chitin with a redox initiator, cerium ammonium nitrate. Both the graft copolymerization and emulsion polymerization of pure poly(vinyl acetate) (PVAc) were observed during the reaction and a stable dispersion solution was obtained after the reaction. After the PVAc homopolymer was removed by acetone extraction, the grafting efficiency and grafting percentage were calculated from the weight balance. Transmission and scanning electronic microscope were used to observe the morphologies of the reaction product. Experimental results indicated that at initial stage of reaction, graft copolymerization, which occurred on the surface of chitin particles, dominated over the emulsion polymerization. After that, the rate of emulsion polymerization increased greatly and became dominant. The existence of chitin not only provided the stability of the emulsion particles, but also increased the polymerization rate. Structures of copolymers were evidenced with the techniques of Fourier transform infrared and differential scanning calorimeter.
關鍵字cerium ammonium nitrate; chitin; graft copolymer; vinyl acetate
語言英文
ISSN1022-9760;1572-8935
期刊性質國外
收錄於SCI;EI
產學合作
通訊作者
審稿制度
國別荷蘭
公開徵稿
出版型式紙本
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