Structure and Thermal Properties of Cellulose Diacetate-Graft-Poly(lactic Acid) Copolymer

Abstract:

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To improve the thermal behavior of cellulose diacetate, cellulose diacetate-graft-poly(lactic acid) copolymers (CDA-g-PLAs) were synthesized by ring-opening polymerization of L-lactide using stannous octoate (Sn(Oct)2) as catalyst. The molecular structure of the copolymer was characterized by FT-IR and 1H-NMR and the thermal properties were investigated by differential scanning calorimetry (DSC) and thermogravimetric analysis (TG-DTA). The results showed that the product was grafted copolymer of cellulose diacetate-graft-poly(lactic acid) with different side-chain structure. The thermal processing properties of CDA-g-PLAs are remarkably improved with melting temperature(Tm) about 140°C which lower than that of CDA and decomposition temperature (Td) higher than 260°C.

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Periodical:

Edited by:

Chuansheng Wang, Lianxiang Ma and Weiming Yang

Pages:

85-89

DOI:

10.4028/www.scientific.net/AMR.221.85

Citation:

W. J. Deng et al., "Structure and Thermal Properties of Cellulose Diacetate-Graft-Poly(lactic Acid) Copolymer", Advanced Materials Research, Vol. 221, pp. 85-89, 2011

Online since:

March 2011

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$35.00

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