Fluorine-containing acrylate

Zhang, Y. X., Da, A. H., Butler, G. B., and Hogen-Esch, T. E.1992. A fluorine-containing hydrophobically associating polymer. I. Synthesis and solution properties of copolymers of acrylamide and fluorine-containing acrylates or methacrylates. J. Polym. Sci., Part A Polym. Chem. 30 1383-1391. 

Trifunctional (meth)acrylate fluorine-containing cyclic and acyclic silane compounds have been prepared that form photocurable resin compositions. Coatings from these resins are anti-fouling and resist organic stains from oil mist and fingerprints without detracting from surface mar resistance. 

Due to good optical and rheological characteristics, homopolymers of fluorine-containing methacrylates and their copolymers with other methacrylates are more often used in fibre-optic practice [2, 20-24, 26-34]. But selection of a polymer with the best optical and mechanical properties requires establishment of the dependence of the structure and properties of the polymers on the structure and reactivity of initial monomers. To solve this problem the study of the kinetics of block polymerisation and copolymerisation process of fluoroalkyl-(meth)acrylates is desirable. 

Comparison of values of the dipole moments of the fluorine-containing and hydrocarbon ethers of acryl acid (AC), displays a significant difference both in the absolute values of dipole moments and in the character of the change of the dipole moments on the number of carbon atoms. Dipole moments of fluorinated acrylates are significantly higher than appropriate values of their hydrocarbonic analogues (pp = 2.41-2.91 D, and Pama = 1.84 D (m = 4)) [56]. 

Note that the reaction rate of radical (co)polymerisation of fluorine-containing (meth)acrylates (with MMA) increases on substitution of CHj groups and H by fluorine atoms at the a-carbon [49]. Therefore, the reaction is accompanied by excretion of a large amount of heat exceeding the heat effect of the block radical polymerisation of FMA [49, 52]. 

Some Properties of Fluorine-containing Polyalkyl(meth)acrylates and a-fluoroacrylates... 

Table 8.13 Dependence of properties of fluorine-containing (meth)acrylate copolymers on their composition ...

In Sections 8.1-8.3 the optical transparent carbochain polymers for materials with the complete internal light-reflection based on fluorine-containing vinyl and (meth)acryl monomers were discussed. 

Fluorine containing polyols were derivatized with lEM by Newell and Wolf (26) to give novel radiation-hardenable urethane acrylates which are especially useful as adhesives for electro-optical components or as protective coatings. 

Washimi, A. Yoshida, T. Kimura, K. (Toa Gosei Chemical Industry Co., Ltd., Japan). Dental Cements With Fluorine-Containing (Meth)acrylates. Jpn. Kokai Tokkyo Koho, JP03255011, A 19911113,1991. 

It is of interest to note that the main chain bonds in most common use (Si—O, C—C, and C—O) have very similar bond energies. It is also reasonable to conclude that those rubbers containing only C—C, C—O, C—H, and/or C—F bonds, even when cross-linked, would have good heat resistance under anaerobic conditions. Such a conclusion is borne out by the ethylene-propylene rubbers, the acrylic rubbers, fluorine-containing rubbers and the polyepichlorhydrins. 

---