Segmental dynamics in poly(ε-caprolactone)/poly(L-lactide) copolymer networks
Poly(ε-caprolactone) (PCL) and poly(lactic acid) (PLA) networks were prepared from macromonomer diols functionalized with methacrylic anhydride, which allows one to get self-crosslinkable polymers. Besides, both macromonomers were copolymerized to get copolymer networks with different compositions (...
Saved in:
Published in | Journal of polymer science. Part B, Polymer physics Vol. 47; no. 2; pp. 183 - 193 |
---|---|
Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Hoboken
Wiley Subscription Services, Inc., A Wiley Company
15.01.2009
Wiley |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | Poly(ε-caprolactone) (PCL) and poly(lactic acid) (PLA) networks were prepared from macromonomer diols functionalized with methacrylic anhydride, which allows one to get self-crosslinkable polymers. Besides, both macromonomers were copolymerized to get copolymer networks with different compositions (namely, PCL/PLA: 0/100, 70/30, 50/50, 30/70, 100/0). Dielectric and calorimetric experiments allow one to conclude the microphase separation of the system: one phase made of pure PCL domains while the second one consists of caprolactone units, which somehow plasticize PLA and moves its main relaxation (glass transition) to lower temperatures. The effect of crosslinking PLA on the dynamics of the system was further investigated by comparing with the dynamics for linear PLA. |
---|---|
Bibliography: | http://dx.doi.org/10.1002/polb.21629 ark:/67375/WNG-K4MTC9P0-D istex:FC3AA3E1ED96278B8FA8A26CC67199C55F0F8185 ArticleID:POLB21629 ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0887-6266 1099-0488 |
DOI: | 10.1002/polb.21629 |