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Condensation polymers from 3,9-bis(7-carbomethoxyheptyl)-2,4,8,10-tetraoxaspiro[5.5]undecane. I. Poly(ester-acetals) and a novel method for crosslinking them

✍ Scribed by Pryde, E. H. ;Awl, R. A. ;Teeter, H. M. ;Cowan, J. C.

Publisher: John Wiley and Sons
Year: 1962
Weight: 588 KB
Volume: 59
Category: Article
ISSN: 0022-3832
DOI: 10.1002/pol.1962.1205916701

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✦ Synopsis

Abstract

3,9‐Bis(7‐carbomethoxyheptyl)‐2,4,8,10‐tetraoxaspiro[5.5]‐undecane (the pentaerythritol acetal of methyl azelaaldehydate) in the presence of basic catalysts underwent condensation polymerization with ethylene glycol to give linear polymers, either alone or in conjunction with other dibasic esters. These linear poly(ester‐acetals) were susceptible to crosslinking by p‐toluenesulfonic acid and by various metal oxides and salts, such as zinc oxide, zinc acetate, litharge, and magnesium oxide. The crosslinked polymers were insoluble, infusible, transparent solids which were strongly adherent to glass.

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Condensation polymers from 3,9-bis(7-carbomethoxyheptyl)-2,4,8,10-tetraoxaspiro[5.5]undecane. II. Poly(amide-acetals)

✍ Pryde, E. H. ;Moore, D. J. ;Teeter, H. M. ;Cowan, J. C. 📂 Article 📅 1962 🏛 John Wiley and Sons ⚖ 465 KB

## Abstract 3,9‐Bis(7‐carbomethoxyheptyl)‐2,4,8,10‐tetraoxaspiro[5.5]undecane (the pentaerythritol acetal of methyl azelaaldehydate) was found to undergo condensation polymerization with diamines to give linear polymers, either alone or in conjunction with dimethyl azelate. These novel, linear poly