Summary
Modified natural rubber products were prepared by reaction with maleic anhydride followed by ring opening and condensation with different oxyalkylcinnamate esters. The values of Tg obtained for these photocrosslinkable polymers showed a complex relation to the number of C atoms of the aliphatic moiety. The kinetics of the dimerization reaction for thin films was followed by UV spectrometry. The film thickness plays an important role on conversion up to a threshold value, characteristic of each product. The expected relation between Tg and kobs was observed for products when Tg values were markedly different.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Azuma C, Sanui K, Ogata N (1982) J Appl Polym Sci 27: 2065
Le Bras J, Pinazzi C, Milbert G (1959) Rev Gen Caoutchouc 36:215
Le Bras J, Pantrat R, Pinazzi P (1964) Reagents with multiple bonds. In: Fettes EM (ed.) Chemical reactions of polymers, Interscience Publishers, New York London Sydney (High Polymers, vol 19), pp (194–233)
Azuma C, Hashizuma N, Sanui K, Ogata N (1983) J Appl Polym Sci 28: 543
Azuma C, Mitsuboshi T, Sanui K, Ogata N (1980) J Polym Sci, Polym Chem Ed 18: 781
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Visconte, L.L.Y., Andrade, C.T. & Azuma, C. Photosensitivity of modified natural polyisoprenes as function of the alipathic side chain. Polymer Bulletin 25, 217–223 (1991). https://doi.org/10.1007/BF00310795
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00310795