Thermal properties and fracture toughness of a liquid-crystalline epoxy resin cured with an aromatic diamine crosslinker having a mesogenic group

2006 ◽  
Vol 44 (17) ◽  
pp. 2486-2494 ◽  
Author(s):  
Miyuki Harada ◽  
Yutaka Watanabe ◽  
Yuko Tanaka ◽  
Mitsukazu Ochi
Keyword(s):  
Fracture Toughness ◽  
Thermal Properties ◽  
Epoxy Resin ◽  
Liquid Crystalline ◽  
Aromatic Diamine ◽  
Mesogenic Group ◽  
Liquid Crystalline Epoxy

Thermal properties and cure kinetics of a liquid crystalline epoxy resin with biphenyl-aromatic ester mesogen

2011 ◽  
Vol 513 (1-2) ◽  
pp. 88-93 ◽  
Author(s):  
Yin-Ling Liu ◽  
Zhi-Qi Cai ◽  
Xiufang Wen ◽  
Pihui Pi ◽  
Dafeng Zheng ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Epoxy Resin ◽  
Liquid Crystalline ◽  
Cure Kinetics ◽  
Aromatic Ester ◽  
Liquid Crystalline Epoxy ◽  
Kinetics Of

Toughening Mechanism of Liquid Crystalline Epoxy Resin with Spacers Outside the Mesogenic Group

2015 ◽  
Vol 609 (1) ◽  
pp. 80-92 ◽  
Author(s):  
Hisanao Yamamoto ◽  
Naoki Sakamoto ◽  
Akira Fujita ◽  
Miyuki Harada ◽  
Mitsukazu Ochi
Keyword(s):  
Epoxy Resin ◽  
Liquid Crystalline ◽  
Mesogenic Group ◽  
Toughening Mechanism ◽  
Liquid Crystalline Epoxy

The effect of stoichiometry on the fracture toughness of a liquid crystalline epoxy

2002 ◽  
Vol 42 (2) ◽  
pp. 269-279 ◽  
Author(s):  
Elizabeth J. Robinson ◽  
Elliot P. Douglas ◽  
John J. Mecholsky
Keyword(s):  
Fracture Toughness ◽  
Liquid Crystalline ◽  
Liquid Crystalline Epoxy

Synthesis of Three Novel Aromatic Biazomethine Liquid- Crystalline Epoxy Resins and Curing Reaction with Aromatic Diamine

2011 ◽  
Vol 216 ◽  
pp. 34-38
Author(s):  
Jun Gang Gao ◽  
Xiao Na Zhang ◽  
Yong Gang Du
Keyword(s):  
Melting Point ◽  
Epoxy Resins ◽  
Liquid Crystalline ◽  
Diphenyl Ether ◽  
Hydroxyl Group ◽  
Aromatic Diamine ◽  
Curing Reaction ◽  
Ozawa Equation ◽  
Liquid Crystalline Epoxy ◽  
Clearing Temperature

Three class of novel liquid crystalline epoxy resins containing azomething groups: N,N’-Bis[4-(2,3-epoxypropoxy)benzylidene]-4,4-diamino-diphenyl ether (p-BEPBDDE), N,N’-Bis[4-(2,3-epoxypropoxy)benzylidene]-4,4-diamino-diphenyl methane (p-BEPBDDM) and N,N’-Bis[(4-(2,3-epoxypropoxy)-benzyliden)-1,4- phenylene diamine] (p-BEPBPD) were synthesized and characterized. The results show that p-BEBDDE and p-BEBDDM belong to smectic texture and melting point is 239.5 and 178 oC, respectively. The p-BEPBD is nematic texture between its melting temperature (Tm) of 192 oC and clearing temperature (Ti) of 238 oC. The curing reaction can be described by Ozawa equation, and the alcohol-hydroxyl group can accelerate the curing reaction and decrease Ea in DSC experiment.

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