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首页> 外文期刊>Journal of Applied Polymer Science >Synthesis and Characterization of Phenoxy Resins Prepared from Diglycidyl Ether f Bisphenol A and Various Aromatic Dihydroxyl Monomers
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Synthesis and Characterization of Phenoxy Resins Prepared from Diglycidyl Ether f Bisphenol A and Various Aromatic Dihydroxyl Monomers

机译：二缩水甘油醚双酚A和各种芳族二羟基单体制备的苯氧基树脂的合成与表征

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摘要

This work describes the synthesis of various phenoxy resing by in situ fusion reaction of aromatic dihydroxyl and low molecular weight liquid diglycidyl ether of bisphenol A (DGEBA0 with an aryl phosphonium salt catalyst. FTIR and ~1H-NMR spectra and GPC analyses were performed to characterize the resins. Analyses results indicated that resins have an adequate high molecular weight and physical properties when the reaction occurred after 5-10 min at 225-230 deg C. In addition, DSC and TGA analyese were performed to investigate the thermal properties of these phenoxy resins.According to these results, the lack of steric hindrance of the molecular structure in these phenoxy resins depressed the changes of T_g and weight loss. A series of phenoxy modified epoxy networks containing narrower polydisperity and higher M_n will exhibit the most significant effect on impact toughness. Moreover, the FTIR spectrum of the phenoxy resin as a function of temperature correlates well with the glass transition temperature. Furthermore, results presented herein demonstrate effective miscibility with thermoplastic polyurethane elastomer (TPU).
机译：这项工作描述了芳香族二羟基与低分子量双酚A的液态二缩水甘油醚（DGEBA0与芳基phospho盐催化剂）的原位融合反应合成各种苯氧基树脂的过程，并进行了FTIR和〜1H-NMR光谱及GPC分析以表征分析结果表明，当反应在225-230℃下5-10分钟后发生时，树脂具有足够的高分子量和物理性能。此外，进行了DSC和TGA分析，研究了这些苯氧基的热性能。根据这些结果，这些苯氧基树脂分子结构的空间位阻的缺乏抑制了T_g的变化和重量损失，一系列具有较窄的多分散性和较高的M_n的苯氧基改性的环氧网络将对冲击产生最显着的影响。此外，苯氧基树脂的FTIR光谱随温度的变化与玻璃的硬度成正比。麻醉温度。此外，本文提供的结果证明了与热塑性聚氨酯弹性体（TPU）的有效混溶性。

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