FTIR and Thermal Analyses of Intermolecular Interactions in Poly(trimethylene terephthalate)/Phenoxy Blends
FTIR and Thermal Analyses of Intermolecular Interactions in Poly(trimethylene terephthalate)/Phenoxy Blends
复制标题
DOI：
10.1002/pen.21839
复制
发表时间：
2011-03-01
影响因子：
3.2
通讯作者：
Melati, Amir
中科院分区：
文献类型：
--
作者：
Farmahini-Farahani, Madjid;Jafari, Seyed-Hassan;Melati, Amir
用傅里叶变换红外光谱(FTIR)和热分析方法研究了熔融共混法制备的聚对苯二甲酸丙二酯/双酚A酚氧基树脂共混物中的分子间相互作用。FTIR结果显示了共混物组分的特征谱带，以及显示共混物中相互关联、自缔合和非缔合氢键的谱带。研究发现，共混物中的自缔合氢键比相互缔合的氢键更有利。另一方面，利用熔点降低法计算出共混物的相互作用参数约为0.047。共混物中相互作用参数的正值和低的相互缔合氢键程度表明共混物是不相容的，扫描电子显微镜观察和动态力学分析证实了这一点。然而，对于化学反应的组份，共混物被改变为均相体系。波兰姆。英语。科学，51：518-525,2011。(C)2010年塑料工程师学会
Intermolecular interactions in the blends of poly(trimethylene terephthalate)/phenoxy resin of bisphenol A prepared by melt mixing in a microcompounder were studied using Fourier transform infrared (FTIR) spectroscopy and thermal analysis. The FTIR results revealed the characteristic bands of the blend constituents along with the bands showing interassociated, self-associated, and nonassociated hydrogen bonding in the blends. It was found that the self-associated hydrogen bonds in the blends were favorable over the interassociated bonds. On the other hand, using the melting point depression, the interaction parameter of the blends was calculated to be about 0.047. The positive value of the interaction parameter and low degree of interassociated hydrogen bonding in the blends suggest the immiscibility of the blends, which is confirmed by scanning electron microscopy observations as well as dynamic mechanical analysis. However, for chemically reacted compositions, the blends were changed to homogenous systems. POLYM. ENG. SCI., 51:518-525, 2011. (C) 2010 Society of Plastics Engineers