Polyspiroacetal resins. Part II. Structure and properties of polyspiroacetals from pentaerythritol-glutaraldehyde and from (pentaerythritol–dipentaerythritol)-glutaraldehyde
Article first published online: 9 MAR 2003
Copyright © 1962 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 6, Issue 23, pages 508–517, September/October 1962
How to Cite
Cohen, S. M., Hunt, C. F., Kass, R. E. and Markhart, A. H. (1962), Polyspiroacetal resins. Part II. Structure and properties of polyspiroacetals from pentaerythritol-glutaraldehyde and from (pentaerythritol–dipentaerythritol)-glutaraldehyde. J. Appl. Polym. Sci., 6: 508–517. doi: 10.1002/app.1962.070062304
- Issue published online: 9 MAR 2003
- Article first published online: 9 MAR 2003
- Manuscript Revised: 12 MAY 1961
- Manuscript Received: 16 FEB 1961
Polyspiroacetal polymers and copolymers derived from pentaerythritol, and glutaraldehyde were prepared and examined for physical properties. Elemental and infrared analyses support the polyspiroacetal structure. X-ray analysis indicates a range of 20–40% crystallinity. Dipentaerythritol was observed to influence in varying degrees the crystallinity, the solubility, and the optimum range of film curing conditions. Resins with more than 25% dipentaerythritol always crosslinked during polymerization. In addition, the variables influencing such resin properties as molecular weight and gelation were examined. Films crosslinked with pyromellitic dianhydride exhibited good flexibility and tensile strength. Moreover, their oxidative thermal stability was only slightly less than that of crosslinked poly(ethylene terephthalate).