𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Condensation polymers from diphenols and glyoxal

✍ Scribed by Ayşegül Acuner Tunca; Okan Sírkecíoǧlu; Nacíye Talinli; Ahmet Akar

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
326 KB
Volume
31
Category
Article
ISSN
0014-3057

No coin nor oath required. For personal study only.

✦ Synopsis

AbstracGPolycondensation

of biphenols such as 2,2-di(4-hydroxyphenyl) propane, I-phenyl-l,l-di(C hydroxyphenyl) ethane, l,l-di(4-hydroxyphenyl) cyclohexane and dihydroxynaphthalenes with glyoxal resulted in a ladder type of polymers. The structures of the ladder polymers were elucidated by FTIR and 'H-NMR.

📜 SIMILAR VOLUMES

Condensation polymers from diisocyanates
Condensation polymers from diisocyanates and dioximes
✍ Tod W. Campbell; Veronika S. Foldi; Robert G. Parrish 📂 Article 📅 1959 🏛 John Wiley and Sons 🌐 English ⚖ 500 KB

## Abstract Diisocyanates condense readily with the two active hydrogen atoms in dioximes to give high molecular weight linear condensation polymers. In several cases these polymers, such as the one from cyclohexanedione dioxime and 4,4′‐biphenylene diisocyanate, magnified image may be converted to

Condensation polymers from diisocyanates
Condensation polymers from diisocyanates with dihydrazides and hydrazine
✍ Tod W. Campbell; Veronika S. Foldi; John Farago 📂 Article 📅 1959 🏛 John Wiley and Sons 🌐 English ⚖ 686 KB

The versatility of the reaction of the isocyaiiate group with various active hydrogen compounds, and some polymers made by this type of reaction, have been discussed recently. Among the unusual active hydrogen compounds which have not been adequately investigated as polymer formers with diisocyanate

Condensation of glyoxal with triethylene
Condensation of glyoxal with triethylenetetraamine. Stereochemistry, cyclization and deprotection
✍ Gwénaëlle Hervé; Hélène Bernard; Nathalie Le Bris; Michel Le Baccon; Jean-Jacque 📂 Article 📅 1999 🏛 Elsevier Science 🌐 French ⚖ 203 KB

A mixture of bis-aminal isomers was obtained from aqueous glyoxal-triethylenetetraamine condensation. The irreversible isomerization of the species was observed and a new synthesis of cyclen proposed.