Melting Behavior of Poly(L lactide)

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$A Newtonian approach to extraordinarily strong negative refraction$

DSC Measurements on the Melting Processes a small and broad endotherm d th (P2) Figure 6. DSC heating curves of (a) PLLA15 and (b) PLLA118 isothermally meltcrystallized at various T cs. small exotherm small exotherm disappears, two endotherms (P ( 1 and P2)present 2)p one endotherm (P1) appears
In Situ Observation on Polymorphic Melting of High-MW PLLA The C=O bands are greatly sensitive to the crystalline structure of PLLA(in Figure 5) 5). The C=O bands are mainly evaluated here. 1850-1700 cm-1 : C=O stretching band group 1300-1000 1300 1000 cm-1 cm 1 : C-O-C C O C, CH CH3 3, C-CH C CH3 3, and their coupling Vibration Figure 7. (a) Temperature-dependent IR spectra, (b) difference spectra calculated by subtracting the initial crystalline spectra (at 140°C) 140°C), iin th the 1850 1850-1000 1000 cm-11 range ffor PLLA118 iisothermally th ll melt- lt crystallized at Tc =80°C registered in the heating process at a rate of 2 °C/min from 140 to 182 °C. (c) Second derivatives of the spectra collected before (at 140 °C) and after (at 182 °C) melting.
Page 1 and 2: Polymorphous Crystallization and Mu
Page 3 and 4: The crystal structure and morpholog
Page 5 and 6: Polarized Optical Microscopy (POM)
Page 7 and 8: peak k shifts hift Difference of ~1
Page 9 and 10: the effect of T c on the crystalliz
Page 11 and 12: Crystalline Structure two dominant
Page 13: WAXD patterns and IR spectra 100-12
Page 17 and 18: Figure 9. Temperature-dependent IR
Page 19 and 20: In Situ Observation on Polymorphic
Page 21: Conclusions the melting of PLLA is

Melting Behavior of Poly(L lactide)

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