Journal
MACROMOLECULAR MATERIALS AND ENGINEERING
Volume 295, Issue 8, Pages 709-715Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/mame.201000071
Keywords
biodegradable polyesters; crystallization; poly(lactic acid)s; stereocomplexes; water vapor permeation
Funding
- Ministry of Education, Culture, Sports, Science and Technology (Japan)
- Japan Society for the Promotion of Science (JSPS) [19500404]
- Grants-in-Aid for Scientific Research [19500404] Funding Source: KAKEN
Ask authors/readers for more resources
PLLA/PDLA blend films with only stereocomplex crystallites as a crystalline species together with pure PLLA and PDLA films with only homo-crystallites as a crystalline species were prepared, and the effects of enantiomeric polymer blending, crystalline species, and crystallinity on the water vapor permeability were investigated. The WVT coefficient P of PLLA/PDLA blend films was 14-23% lower than that of pure PLLA and PDLA films in the crystallinity X(c) range of 0-30%. Amorphous PLLA/PDLA blend films have a much lower P than pure PLLA and PDLA films. The dependence of P on Xc for blend films was stronger for X(c) = 0-30% than for X(c) = 30-100%. This dependence is discussed using the Nielsen model and the concept of restricted (or restrained) and free amorphous regions.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available
Share Paper
