Crystallization of poly(3‐hydroxybutyrate) with stereocomplexed polylactide as biodegradable nucleation agent
作者： Ling Chang , Eamor M. Woo
DOI: 10.1002/PEN.23081
关键词:
摘要: Crystallization kinetics behavior and morphology of poly(3-hydroxybutyrate) (PHB) blended with 2–10 wt% loadings poly(L- D-lactic acid) (PLLA PDLA) stereocomplex crystallites, as biodegradable nucleating agents, were studied using differential scanning calorimetry, polarizing-light optical microscopy (POM), wide-angle X-ray diffraction (WAXD). Blending PLLA PDLA at 1:1 weight ratio led to formation stereocomplexed PLA (sc-PLA), which was incorporated small crystalline nuclei into PHB for investigating melt-crystallization kinetics. The Avrami equation used analyze the isothermal crystallization PHB. crystallites acted nucleation sites in blends accelerated rates by increasing rate constant k decreasing half-time (t1/2). nucleated most effectively 10 evidenced byPOM results. sc-PLA complexes (nucleated crystals) exhibit much spherulite sizes but possess same crystal cell that neat based on WAXD result. POLYM. ENG. SCI., 2012. © 2012 Society Plastics Engineers
sci-hub.se 参考文章(34)
Hideto Tsuji, Hiroki Takai, Swapan Kumar Saha, Isothermal and non-isothermal crystallization behavior of poly(l-lactic acid): Effects of stereocomplex as nucleating agent Polymer. ,vol. 47, pp. 3826- 3837 ,(2006) , 10.1016/J.POLYMER.2006.03.074
Y HE, B ZHU, Y INOUE, Hydrogen bonds in polymer blends Progress in Polymer Science. ,vol. 29, pp. 1021- 1051 ,(2004) , 10.1016/J.PROGPOLYMSCI.2004.07.002
P. J. Barham, A. Keller, The relationship between microstructure and mode of fracture in polyhydroxybutyrate Journal of Polymer Science Part B. ,vol. 24, pp. 69- 77 ,(1986) , 10.1002/POLB.1986.180240108
Hideto Tsuji, Yoshito Ikada, Suong-Hyu Hyon, Yoshiharu Kimura, Toshio Kitao, Stereocomplex formation between enantiomeric poly(lactic acid). VIII. Complex fibers spun from mixed solution of poly(D-lactic acid) and poly(L-lactic acid) Journal of Applied Polymer Science. ,vol. 51, pp. 337- 344 ,(1994) , 10.1002/APP.1994.070510216
Tungalag Dong, Takafumi Mori, Taizo Aoyama, Yoshio Inoue, Rapid crystallization of poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) copolymer accelerated by cyclodextrin-complex as nucleating agent Carbohydrate Polymers. ,vol. 80, pp. 387- 393 ,(2010) , 10.1016/J.CARBPOL.2009.11.036
Kai Weihua, Yong He, Naoki Asakawa, Yoshio Inoue, Effect of lignin particles as a nucleating agent on crystallization of poly(3‐hydroxybutyrate) Journal of Applied Polymer Science. ,vol. 94, pp. 2466- 2474 ,(2004) , 10.1002/APP.21204
Weihua Kai, Yong He, Yoshio Inoue, Fast crystallization of poly(3-hydroxybutyrate) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) with talc and boron nitride as nucleating agents Polymer International. ,vol. 54, pp. 780- 789 ,(2005) , 10.1002/PI.1758
Scott C. Schmidt, Marc A. Hillmyer, Polylactide stereocomplex crystallites as nucleating agents for isotactic polylactide Journal of Polymer Science Part B. ,vol. 39, pp. 300- 313 ,(2001) , 10.1002/1099-0488(20010201)39:3<300::AID-POLB1002>3.0.CO;2-M
Hideto Tsuji, Yoshito Ikada, Stereocomplex formation between enantiomeric poly(lactic acids). 9. Stereocomplexation from the melt Macromolecules. ,vol. 26, pp. 6918- 6926 ,(1993) , 10.1021/MA00077A032
Ling Chang, E.M. Woo, Effects of molten poly(3-hydroxybutyrate) on crystalline morphology in stereocomplex of poly(L-lactic acid) with poly(D-lactic acid) Polymer. ,vol. 52, pp. 68- 76 ,(2011) , 10.1016/J.POLYMER.2010.11.028