Investigation of Photosensitivity of Copolymer with (P-Vinyl Phenyl) Cyclopropyl Methyl Cinnamate

Abstract

The radical copolymerization of (p-vinyl phenyl) cyclopropyl methyl cinnamate with methyl methacrylate has been studied. New cyclopropane-containing photosensitive copolymers have been prepared. The constant values of relative activity of monomers have been determined and the parameters of Q-e on Alfrey and Price have been calculated. The copolymerization constants of this compound (r1) with methyl methacrylate (r2) calculated on Fineman-Ross method are r1 =1.05, r2 = 0.4, respectively; parameter values Q and e: Q1 =2.5, e1 =-0.9, respectively. The composition and structure of these copolymers have been established. The photochemical investigations of the synthesized copolymer have been carried out. It has been established that a structuring proceeds due to opening of cyclopropane ring and carbonyl groups and also double bond in cinnamate fragment.

SYNTHESIS OF ETHYL ESTERS OF PHENYL- AND p-PHENYL SUBSTITUTED CYCLOPROPANECARBOXYLIC ACIDS AND THEIR CONVERSION

“…It has been revealed that the absorption bands of the benzene and cyclopropane rings are retained in the compounds 9-12 and there are the absorption bands at 875 and 1250 cm -1 for fragment. In the IR spectra of 2-phenylcyclopropylcarbinols (5)(6)(7)(8) in the pure form, it is seen a strong absorption in the field of ~1050 cm -1 , which is probably characteristic for alcohols C-O group. The absorption of alcohols 5-8 is especially appeared as two broad bands: one at 3340 cm -1 and the second, relatively lowintensive at 3560 cm -1 .…”

“…The observed band at 3500 cm -1 in the spectra of a dioxane solution of 2-phenylcyclopropylcarbinols (5)(6)(7)(8), is probably referred to the vibrations of hydroxyl groups forming hydrogen bonds between alcohol molecules in dimeric complexes and between alcohol molecules in dioxane. The bands at 3620 cm -1 , which appear as a result of some decrease of the concentration of closed dimeric complexes at dilution, probably can be attributed to the vibration of end hydroxyl group of the dimer type .…”

“…This has been stipulated by both large synthetic and theoretical value of the cyclopropane derivatives and by the fact that they exhibit various biological activity [1][2][3][4]. It has been revealed in carrying out of the systematic investigations that the polymers obtained on the basis of cyclopropane derivatives have high photosensitivity [5][6][7][8][9]. The systematic investigations of the reaction of functionally substituted cyclopropanes, study of the composition, structure and properties of these cyclopropanecontaining compounds have been presented.…”