Melting Behavior of Poly(L lactide)
Melting Behavior of Poly(L lactide)
Melting Behavior of Poly(L lactide)
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Experimental Section<br />
Materials : , number-average molecular weight (M n) : 15 KM n ~ 219 KM n<br />
Gel Permeation Chromatography (GPC) :<br />
Use to measure Molecular weight <strong>of</strong> the PLLA samples<br />
Differential Scanning Calorimetry (DSC) :<br />
Use to measure thermal properties <strong>of</strong> PLLA samples<br />
th the iisothermal th l melt-crystallization lt t lli ti experiment, i t<br />
melting at 200 °C for 2 min<br />
Coolling at a rate <strong>of</strong> 100 °C/min to the desired Tc h heating ti t to 200 °C at t 10 °C/ °C/min(or i ( 2 °C/ °C/min) i )<br />
at 90 °C ≤ Tc ≤ 130 °C, the isothermal melt-crystallization time is 60 min.<br />
at t T Tc > 130 °C and d T Tc < 90 °C °C, th the iisothermal th l melt-crystallization lt t lli ti ti time i is 240 min<br />
i
Change language