首页|Properties of poly(4-hyderoxybenzoate) oligomer and its blends with poly(trimethylene terephthalate)
Properties of poly(4-hyderoxybenzoate) oligomer and its blends with poly(trimethylene terephthalate)
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NETL
NSTL
Trans Tech Publications Ltd
The poly(4-hydroxybenzoate) (PHBA) oligomer was synthesized by using the monomer of 4-acetoxybenzoic acid (PABA), and its blends with poly(trimethylene terephthalate) (PTT) are prepared by melt-blending at 250℃ in nitrogen. Their chemical structure characterization and crystal morphology were investigated by using the fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance (~1HNMR), and polarizing optical microscopy, respectively. The results suggest that PHBA oligomer with 3 polymerization degree was synthesized and it is a thermotropic liquid crystal with the nematic characteristics. When the blends crystallize from melt, because the rigid oriented PHBA molecules becomes the nucleating agents for PTT molecules' crystallization, much transcrystalline layers formed in the blends, although the crystalline PTT/PHBA blends show spherulites morphology character without observing nematic LC phase.
Poly(4-hydroxybenzoate)PTTliquid crystalDSC
Mingtao Run、Xiaomin Hu、Meibo Sun、Weitao Ma
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Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, Hebei, P. R. China
NETL
NSTL
Trans Tech Publications Ltd
