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Synthesis of a soluble azomethine-containing bisphenol and the properties of its modified epoxy thermosets
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Zhang, Xinghong, Chen, Shang, Chen, Tao, Sun, Xueke, Liu, Fei and Qi, Guorong (2007) Synthesis of a soluble azomethine-containing bisphenol and the properties of its modified epoxy thermosets. Journal of Applied Polymer Science, Vol.106 (No.3). pp. 1632-1639. doi:10.1002/app.26712 ISSN 0021-8995.
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Official URL: http://dx.doi.org/10.1002/app.26712
Abstract
A soluble bisphenol containing azomethine moiety and aromatic ether linkage, 2,2'-bis {4-[4-(hydroxy) phenytiminomethylidene] phenoxyphenyl} propane (BHPP), was synthesized from the reaction of 4-hydroxybenzaldehyde with 2,2'-bis (4-aminophenoxy phenyl) propane (BAPP) and characterized by IR, H-1 NMR, C-13 NMR, and elemental analysis. To improve the overall properties of epoxy/diamine thermoset, ternary-curing systems combined BAPP/BHPP with diglycidyl ether of biphenyl A (DGEBA) were designed. It was found that the curing behavior and properties of the BAPP/DGEBA system changed dramatically due to the introduction of BHPP. The hybrid-curing agents BAPP/BHPP exhibited more reactivity toward oxirane group than did BAPP. All the epoxy thermosets had high thermal properties, e.g., glass transition temperatures (T(g)s) are between 145 and 170 degrees C, 5% weight loss temperatures over 329 degrees C, integral procedure decomposition temperature (IPDT) varied with 682-1085 degrees C and good flame retardancy for their high limited oxygen index (LOI) values beyond 28.4.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QD Chemistry | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||
Journal or Publication Title: | Journal of Applied Polymer Science | ||||
Publisher: | John Wiley & Sons, Inc. | ||||
ISSN: | 0021-8995 | ||||
Official Date: | 5 November 2007 | ||||
Dates: |
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Volume: | Vol.106 | ||||
Number: | No.3 | ||||
Number of Pages: | 8 | ||||
Page Range: | pp. 1632-1639 | ||||
DOI: | 10.1002/app.26712 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
Data sourced from Thomson Reuters' Web of Knowledge
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