Thermal decomposition of solid state poly(β-L-malic acid) |
| |
Authors: | Fujishige S |
| |
Institution: | (1) Tokyo Kasei University, Kaga 1-18, Itabashi, Tokyo 173-8602, Japan |
| |
Abstract: | Thermal decomposition process of solid state poly(β -L-malic acid) was traced by DSC combined with FT-IR. Melting temperature of this partially crystallized polymer was detected
at 46-60°C. The thermal decomposition initiated at ca 185°C accompanied by an evolution of gaseous products. In contrast to
the cleavage reaction in the aqueous polymer solutions which gives L-malic acid and corresponding dimer of L-malic acid, the solid state poly(β -L-malic acid) decomposed at above the decomposition temperature giving not the constituent L-malic acid but fumaric acid at the first stage of the reaction then, maleic and maleic anhydride.
This revised version was published online in July 2006 with corrections to the Cover Date. |
| |
Keywords: | fumaric acid maleic acid DSC maleic anhydride FT-IR L-malic acid |
本文献已被 SpringerLink 等数据库收录! |
|