Photopolymérisation de monomères multifonctionnels—VII. Evaluation des constantes de vitesse de propagation et de terminaison

✍ Scribed by C. Decker; B. Elzaouk

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 887 KB
• Volume: 31
• Category: Article
• ISSN: 0014-3057
• DOI: 10.1016/0014-3057(95)00085-2

✦ Synopsis

Recu le 30 seprembre 1994; rlersion finale accept&e le 7 ocrobre 1994) from the very begmning of the irradiation, down to values of the order of IO' I mol-' see-' at 50% conversion.

The high reactivity of some novel acrylate monomers containmg carbamate or oxazolidone functions was shown to result from a poorly efficient termination process. From the polymerlsation profiles recorded just after the U.V. exposure, it was concluded that polymer radicals disappear first by bimolecular Interactions, and later on by occlusion in the crosslinked polymer matrix.