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Modification of acetophenone–formaldehyde and cyclohexanone–formaldehyde resins

✍ Scribed by Nilgün Kizilcan; Ahmet Akar


Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
550 KB
Volume
60
Category
Article
ISSN
0021-8995

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✦ Synopsis


Cyclohexanone-formaldehyde and acetophenone-formaldehyde resin were in situ modified with phenol, Bisphenols, and substituted acetophenones. Furthermore, acetophenoneformaldehyde, cyclohexanon-formaldehyde, and in situ-modified resins were modified with anhydrides such as acetic anhydride, maleic anhydride, dodecenylsuccinic anhydride, 3,434'biphenyltetracarboxylic dianhydride, and 4,4'-oxydiphtalic anhydride. Modification of these resins with hydroxyl amine, semicarbazide, and phenyl hydrazine were also studied. Melting points, solubilities in organic solvents, FTIR, and NMR spectrum of the modified resins were determined.


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Chain extended cyclohexanone-formaldehyd
✍ Nilgün Kizilcan; Ahmet Akar 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 190 KB

The preparation of chain extended cyclohexanone-formaldehyde and acetophenone-formaldehyde resins and their physical properties were studied. The chain extension was regulated by the ratio of the hydroxyl groups of the ketonic resin/reactive reagents. Both resins were chain extended with dimethyl di