Reference

Active centers in the anionic polymerization of methoxypolyethylene glycol methacrylates

Active centers in the anionic polymerization of methoxypolyethylene glycol methacrylates. Berlinova, I.; Tsvetanov, Kh.; Panaiotov, I.; Vinogradova, L. V. There are some commonly used reagents like 90781-20-7 in this article. (Cent. Lab. Polym., Sofia 1040, Bulg.). Eur. Polym. J., 20(5), 429-32 (English) 1984. CODEN: EUPJAG. ISSN: 0014-3057. DOCUMENT TYPE: Journal CA Section: 35 (Chemistry of Synthetic High Polymers) The nature of the propagation sites in the anionic polymn. of methoxypolyethylene glycol methacrylate [26915-72-0] in the presence of Li counterion was studied by IR spectra of the model compds., Li derivs. of isobutyric acid esters, Me2CLiCO2(CH2CH2O)nMe (n = 1-4), and 2,2,4-trimethylglutaric acid esters. The wavelength of the absorption band of lithioisobutyrate is independent of the nature of the solvent. This was explained by intramol. solvation of Li+ by the polyether alc. residue. The spectra of the metalated trimethylglutarates give evidence of concurrent solvation of Li+ by the alkoxycarbonyl group in the g-position and the alc. residue of the ester group bound to the metalated C atom. When the no. of ethylene oxide units in the polyether chain is increased, the coordination of Li+ to it prevails over the interaction with the g-alkoxycarbonyl group. .

Veneers

Veneers. (Matsushita Electric Works, Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 59201803 A2 15 Nov 1984 Showa, 3 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: B27D005-00; B27K005-02; B27L005-00. APPLICATION: JP 83-76911 30 Apr 1983. DOCUMENT TYPE: Patent CA Section: 38 (Plastics Fabrication and Uses) Section cross-reference(s): 42, 43 Veneers are treated with a soln. contg. polyethylene glycol mono-Me ether methacrylate (I) [26915-72-0] to improve cracking resistance. Thus, an agathis veneer was coated at 70 g/m2 with a soln. of 10% I and 0.1% peroxide in a printing agent, laminated with a polypropylene [9003-07-0] sheet, coated with a urethane adhesive, and pressed to give a laminate with improved cracking resistance.