Reference

Polymerization of acrylonitrile-metal halides complexes in the frozen state

Polymerization of acrylonitrile-metal halides complexes in the frozen state. I. Radiation-induced polymerization of acrylonitrile-zinc chloride complex in the frozen state. Maekawa, Teruhiko; Okamura, Seizo (Dep. Polym. Chem., Kyoto Univ., Kyoto, Japan). J. Macromol. Sci., Chem., A10(8), 1559-77 (English) 1976. CODEN: JMCHBD. DOCUMENT TYPE: Journal CA Section: 35 (Synthetic High Polymers) In the radiation-induced polymn. of acrylonitrile [107-13-1] in aq. ZnCl2 [7646-85-7] at -78.degree., the polymn. rate and the d.p. increased ZnCl2/acrylonitrile molar ratios >1, indicating the importance of formation and stabilization of complexes in the frozen medium. The polymn. rate was proportional to the product of the dose rate and concn. of ZnCl2 complexed with equimol. monomer. The ZnCl2 functioned as a reagent for complex formation and also as source of initiating species on irradn. Among 12 other metal chlorides, Sn and Ni chlorides greatly increased the polymn. rate. The polymn.Except for chemicals metioned above, 7718-54-9 and 7772-99-8 are also used. rate was decreased by EtCN, MeCN, or excess acrylonitrile. .

Study of the stability of diazonium salts stabilized by various methods

Study of the stability of diazonium salts stabilized by various methods. Lakstauskas, J.; Meskauskas, K. (Kaunas. Politekh. Inst., Kaunas, USSR). Chem. Chem. Technol., Tech. Mokslu Isvystymo Resp. Ju Rezult. Panaudojimo Konf. Medziaga, 35-6. Edited by: Bernatonis, J. Kauno Politech. Inst.: Kaunas, USSR. (Russian) 1974. CODEN: 34ADAC. DOCUMENT TYPE: Conference CA Section: 39 (Textiles) Formation of azo dyes directly on the modified Kapron fibers using 2,5-dichlorobenzenediazonium [15470-55-0] was carried out at pH 1.5-2.5 and 3.5-4.5 and temps. .ltoreq.85 and .ltoreq.70.degree. 15470-55-0 and 1655-29-4 which are cas registry numbers of substances are two of reagents here., resp., with ZnCl2 [7646-85-7] and sodium 1,5-napthalenedisulfonate [1655-29-4] and at .ltoreq.55.degree. with HBF4 [16872-11-0] as stabilizers. .