Non-isothermal Crystallization of Poly (1, 3-Propylene Glycol- Hexanedioic Acid) Grafted Hydroxyl Multi-wall Carbon Nanotubes
A series of poly (1, 3-propylene glycol-hexanedioic acid) grafted hydroxyl multi-wall carbon nanotubes (PHHCNT) are prepared by in situ polymerization using hydroxyl carbon nanotubes (HCNTs), 1, 3-propylene glycol and hexanedioic acid as reactants. Unique crystallizing and melting behaviors of PHHCNT were examined using differential scanning calorimetry (DSC). The non-isothermal crystallization behaviors and kinetics of PHHCNT significantly depend on the feed content of HCNTs and cooling rate. The crystallization peak temperatures (Tc) of PHHCNT tend to shift to higher temperature region with increasing feed content of HCNTs in some extent. HCNTs accelerate the formation of heterogeneous nuclei and crystal growth. A small quantity of HCNTs is more effective for enhancing the crystallizing rate and enthalpy of PHHCNT. The non-isothermal crystallization of PHHCNT is departure from Jeziorny equation. An Avrami-Ozawa equation is effective in describing the non-isothermal crystallization of PHHCNT.
Hydroxyl multi-wall carbon nanotubes poly (1 3-propylene glycol-hexanedioic acid) non-isothermal crystallization nucleation
孟庆杰 张兴祥 白世河 王学晨
天津改性与功能性纤维重点实验室,功能纤维研究所,天津工业大学,天津300160,中国
国际会议
成都
英文
2007-11-19（万方平台首次上网日期，不代表论文的发表时间）