Melting and crystallization behaviors of electrostatic spinning polycaprolactone/polyethylene glycol blends

作者：Dong, Jiang; Yuan, Tian; Yu, Xu Tian; Jia, Liu You; Mei, Zhang^*

来源：High Performance Polymers, 2012, 24(5): 441-446.

DOI：10.1177/0954008312446764

• blend
• polycaprolactone
• polyethylene glycol
• crystallization
• melting point

Polycaprolactone/polyethylene glycol (PCL/PEG) blends were prepared by electrostatic spinning. The melting behavior and isothermal, non-isothermal crystallization kinetics were investigated using differential scanning calorimetry (DSC). The results showed the DSC thermograms of blend samples. With increasing PEG content, the position of the crystallization peak shifted to a higher temperature, while the position of the melting peak shifted slightlys. With increasing the heating rates, the position of the melting peak shifted to a higher temperature and the total heat of fusion also gradually increased. Both PCL and PEG could crystallize. By DSC, the PEG and PCL mutually promote to develop a thicker crystal and more perfect crystallite. This effect of promotion may result from the interaction of the molecular chain period of the two polymers. The Avrami equation described the non-isothermal crystallization kinetics of this blend very well.

• 出版日期2012-8
• 单位吉林大学