Miscibility and degradability of poly(lactic acid)poly(ethylene oxide)/poly(ethylene glycol) blends
Conference
·
OSTI ID:126876
- Univ. of Massachusetts, Lowell, MA (United States)
Poly(lactic acid) [PLA] was melt blended with polyethylene(oxide) [PEG] and poly(ethylene glycol) [PEG] in different compositions to form blown films. It was determined that PLA was miscible with PEO in all compositions. Based on Gordon-Taylor equation, it was determined that the interactions between PLA and PEO is stronger than PEG. The addition of low molecular weight PEG improved the elongation and tear strength of the blends. Enzymatic degradation results shows that the weight loss of all the samples was more than 80% of the initial weight in 48 hours.
- OSTI ID:
- 126876
- Report Number(s):
- CONF-950402--
- Country of Publication:
- United States
- Language:
- English
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