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Citation: YOU Tian-Biao, TAN Ying, TANG Qing, HU Ai-Xi. Preparation and Characterization of Cellulose Diacetate Polyethylene Glycol Graft Copolymer[J]. Chinese Journal of Applied Chemistry, ;2006, 23(3): 346-348. shu

Preparation and Characterization of Cellulose Diacetate Polyethylene Glycol Graft Copolymer

1.
College of Chemistry and Chemical Engineering, Human University, Changsha 410082

Corresponding author: HU Ai-Xi,
Received Date: 25 April 2005
Available Online: 10 July 2005

Cellulose diacetate(CDA) was grafted with polyethylene glycol(PEG) by using 1,6-hexamethylene diisocyanate(HDI).The effects of molecular weight of PEG,the ratio of PEG to CDA,HDI amount,catalyst amount and reaction time on the grafting reaction were studied.The optimal condition were determined by means of orthogonal experiments,that is,n(NCO):n(OH) was 4:4;m(PEG):m(CDA) was 5.0:3.0;the mass fraction of catalyst was 0.10%,reaction time was 1.5 h and molecular weight of PEG was 200.The graft rate of CDA-g-PEG prepared under the optimal conditions was 253.3%.The graft copolymer was characterized by means of FT-IR,¹H NMR,and ¹³C NMR techniques.
- cellulose diacetate-polyethylene glycol,
- graft copolymer,
- hexamethylene diisocyanate,
- preparation,
- characterization
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