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Enhanced Crystallization from the Glassy State of Poly(L-lactic acid) Confined in Anodic Alumina Oxide Nanopores
Guan, Y; Liu, GM; Ding, GQ; Yang, TY; Muller, AJ; Wang, DJ
2015
Source PublicationMACROMOLECULES
Volume48Issue:8Pages:2526—2533
Subtype期刊文献
AbstractThe crystallization behavior of poly(L-lactic acid) (PLLA) it in anodic alumina oxide templates (AAO),was investigated by differential scanning calorimetry (DSC), and wide-angle-X-ray diffraction (WAXD). During heating from the glassy state, the crystallization, of infiltrated PLLA was unexpectedly enhanced as compared with bulk PLLA. The cold crystallization temperature of infiltrated PLLA from the glassy state was much lower than that of bulk PLLA. The half-crystallization time (t(1/2)) of infiltrated PLLA at 75 degrees C decreased with the diameter of AAO nanopores. The glass transition temperature of PLLA was not influenced by the geometrical Confinement, The enhanced crystallization from the glassy state was explained by surface-induced nucleation of AAO walls on PLLA. Our results provide the first observation of enhanced cold crystallization of polymers in confined geometry,
KeywordUltrathin Polymer-films Cold Crystallization Poly(Ethylene Oxide) Cylindrical Nanopores Crystal Orientation Poly(Lactic Acid) Melting Behavior Nucleation Kinetics Polyethylene
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/24453
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Guan, Y,Liu, GM,Ding, GQ,et al. Enhanced Crystallization from the Glassy State of Poly(L-lactic acid) Confined in Anodic Alumina Oxide Nanopores[J]. MACROMOLECULES,2015,48(8):2526—2533.
APA Guan, Y,Liu, GM,Ding, GQ,Yang, TY,Muller, AJ,&Wang, DJ.(2015).Enhanced Crystallization from the Glassy State of Poly(L-lactic acid) Confined in Anodic Alumina Oxide Nanopores.MACROMOLECULES,48(8),2526—2533.
MLA Guan, Y,et al."Enhanced Crystallization from the Glassy State of Poly(L-lactic acid) Confined in Anodic Alumina Oxide Nanopores".MACROMOLECULES 48.8(2015):2526—2533.
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