Welcome to Chemistry and Industry of Forest Products,

›› 2008, Vol. 28 ›› Issue (5): 11-15.

• 研究报告 • Previous Articles     Next Articles

Study on Synthesis and Structure of Cellulose Acetate Propionate

DUAN Li-yan, JIN Li-wei, CAO Zhen-yan, XU Yu-zhi, WANG Chun-peng, CHU Fu-xiang   

  1. Institute of Chemical Industry of Forest Products, CAF;Key and Open Lab. on Forest Chemical Engineering, SFA, Nanjing 210042, China
  • Received:2008-01-08 Revised:1900-01-01 Online:2008-10-30 Published:2008-10-30

Abstract: Cellulose acetate propionate (CAP) was synthesized through heterogeneous esterification of cellulose. The substituting degree of CAP was determined by 13C NMR and chemical titration. The structure and properties of CAP were investigated by IR, gel permeation chromatography (GPC), X-ray diffraction (XRD) and differential scanning calorimetry (DSC). The results showed that the crystallinity of CAP was decreased from 68% to 30%-40%, and the glass transition temperature was about 150℃. The plasticizing properties after esterification have been improved.

Key words: cellulose acetate propionate, 13C NMR, X-ray

CLC Number: