Lee, JY Jang, JS Hwang, SS Hong, SM Kim, KU 2024-01-21T16:35:36Z 2024-01-21T16:35:36Z 2021-09-03 1998-11 0032-3861 https://pubs.kist.re.kr/handle/201004/142783 Two liquid crystalline epoxy (LCE) resins based on biphenol mesogen, BP1 and BP2, were synthesized to produce a highly heat-resistant liquid crystalline network, and the curing behaviour of them was investigated using diaminodiphenylsulfone (DDS) and diaminodipheylester (DDE) as curing agents. The curing rate and heat of curing of LCE resins were measured with dynamic and isothermal DSC, The curing reaction of BP2 based on aromatic ester was faster than that of BP1, and the degree of cure was vice versa. A densely cross-linked BP2 network showed a much higher glass transition temperature (approximate to 280 degrees C) and elastic modulus than other epoxy resins reported up to now. BP2 formed a liquid crystalline network on curing with DDS and DDE, while BP1 showed a liquid crystalline network on curing with DDE. The liquid crystalline phase of the resulting network was maintained up to decomposition temperature (<300 degrees C). (C) 1998 Elsevier Science Ltd. All rights reserved. English ELSEVIER SCI LTD THERMOSETS Synthesis and curing of liquid crystalline epoxy resins based on 4,4 &apos;-biphenol Article 10.1016/S0032-3861(98)00101-3 1 POLYMER, v.39, no.24, pp.6121 - 6126 POLYMER 39 24 6121 6126 scie scopus 000075627300031 2-s2.0-0032210354 Polymer Science Polymer Science Article THERMOSETS liquid crystalline epoxy resin biphenol mesogen curing