The crystallization kinetics of poly(L-lactide-co-rneso-lactide) were determined over a range of 0% to 9% mesolactide. The kinetics were fit to the nonlinear Avrami equation and then to the Hoffman-Lauritzen equation modified for optical copolymers. The theory was found to fit the data well. The cry
Effect of crystallization temperature on crystal modifications and crystallization kinetics of poly(L-lactide)
β Scribed by Pengju Pan; Bo Zhu; Weihua Kai; Tungalag Dong; Yoshio Inoue
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 534 KB
- Volume
- 107
- Category
- Article
- ISSN
- 0021-8995
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Isothermal melt crystallization of poly( L-lactide ) (PLLA) has been studied in the temperature range of 90 to 135ΠC. A maximum in crystallization kinetic was observed around 105ΠC. A transition from regime II to regime III is present around 115ΠC. The crystal morphology is a function of the degree
## Abstract The effect of thermal history on the nonisothermal crystallization of poly(Lβlactide) (PLA) was studied. The cold crystallization of PLA by heating from the glassy state was dominated by the heating rate. However, the temperature to which PLA was cooled before crystallization markedly a