| 000 | 01738nam a2200229Ia 4500 | ||
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| 003 | MX-MdCICY | ||
| 005 | 20250625124730.0 | ||
| 040 | _cCICY | ||
| 090 | _aB-9001 | ||
| 245 | 1 | 0 | _aThe Crystallization and Melting Processes of Poly(L-lactic acid) |
| 490 | 0 | _vMacromol. Symp., 234, p.176-183, 2006 | |
| 520 | 3 | _aA throughout investigation of crystallization and melting behavior of poly(L-lactic acid)is detailed in this contribution. Crystallization analyses, conducted in both isothermal and non-isothermal conditions, revealed the occurrence of a sudden acceleration in phase transition rate in the temperature range between 100 and 118 8C. This unusual increase, due to very high rates of spherulite growth, seems not related to morphological changes of PLLA spherulites, nor to unexpected variations in nucleation rate. DSC analyses disclosed multiple melting behavior of PLLA, depending on crystallization temperature. At low temperatures the very high crystallization rates lead to the achievement of low values of crystalline degree, with formation of small and/or defective crystals, which have a large tendency to reorganize into more stable structures during the heating scan that leads to complete fusion. The multiple melting process of PLLA was also analyzed at different heating rates. | |
| 650 | 1 | 4 | _aCRYSTALLIZATION |
| 650 | 1 | 4 | _aMULTIPLE MELTING |
| 650 | 1 | 4 | _aPHASE TRANSITIONS |
| 650 | 1 | 4 | _aPOLY(LACTIC ACID) |
| 650 | 1 | 4 | _aTHERMAL PROPERTIES |
| 700 | 1 | 2 | _aDi Lorenzo, M.L. |
| 856 | 4 | 0 |
_uhttps://drive.google.com/file/d/11zfBab5lMrKcbXZWxC_wDsbb__-sBkx2/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
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