Abstract
Poly(3-dodecylthiophene) (P3DDT) and poly(3-octadecylthiophene) (P3ODT) are chosen to investigate the nonisothermal crystallization behavior by using differential scanning calorimetry (DSC). When Jeziorny method is applied, the deviation from the line appears at the later stage of crystallization for both P3DDT and P3ODT. The Ozawa equation fails to describe the nonisothermal crystallization of P3DDT, but succeeds for P3ODT. However, a new method proposed by our laboratory has been proven to be convenient and applicable for both of the two polymers. The values of the crystallization activation energy of P3DDT and P3ODT are estimated as 184.79 and 246.93 kJ/mol, respectively, in light of the Kissinger method.
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