Reference

New polymers with heterocyclic side groups having antioxidant properties

New polymers with heterocyclic side groups having antioxidant properties. Herdan, J.; Crisan, Livia; Luca, M.; Baliu, S. (Inst. Technol. Eng. Res. Design Refineries, Ploiesti, Rom.). Rev. Roum. Chim., 28(7), 757-62 (English) 1983. CODEN: RRCHAX. ISSN: 0035-3930. DOCUMENT TYPE: Journal CA Section: 35 (Chemistry of Synthetic High Polymers) Section cross-reference(s): 67 2-Mercaptobenzothiazole [149-30-4] and 2-mercaptobenzimidazole [583-39-1] were treated with Et chloroacetate [105-39-5] in MeOH and NaOMe to obtain Et S-(2-benzothiazolyl)mercaptoacetate [24044-88-0] and Et S-(2-benzimidazolyl)mercaptoacetate [5429-62-9], resp., which were treated with monoethanolamine [141-43-5] in boiling xylene to obtain N-(b-hydroxyethyl)-S-(2-benzothiazolyl)mercaptoacetamide (I) [88819-54-9] and N-(b-hydroxyethyl)-S-(2-benzimidazolyl)mercaptoacetamide (II) [88819-55-0], resp., which were treated with cetyl methacrylate-maleic anhydride copolymer (III) to obtain I-III esters [88845-55-0] and II-III esters [88845-54-9], resp., which were used as antioxidants in the initiated oxidn. of Tetralin [119-64-2] and as catalysts in the decompn. of isopropylbenzene hydroperoxide [80-15-9].

Polymerization of ethylenically unsaturated monomers

Polymerization of ethylenically unsaturated monomers. Patron, Luigi; Console, Luciano (Chatillon Societa Anon. Italiana per le Fibre Tessili Artificiali S.p.A., Italy). Ital. IT 912618 15 Mar 1972, 17 pp. (Italian). (Italy). CODEN: ITXXAX.Several reagents with their cas registry numbers 109-88-6 and 124-41-4 are used here. CLASS: IC: C08F. APPLICATION: IT 70-912618 10 Aug 1970. DOCUMENT TYPE: Patent CA Section: 35 (Synthetic High Polymers) Vinyl polymers are prepd. at high polymn. rates in bulk or soln., at -50 to +50.degree. in the presence of catalyst systems contg. an org. hydroperoxide, an alkyl or cycloalkyl ester of sulfuric or phosphoric acid, and an alkali or alk. earth metal alcholate. A mixt. of cumene hydroperoxide [80-15-9] 20, dimethyl sulfate [77-78-1] 56, and magnesium dimethylate [109-88-6] 38.2 g was added to 2000 g Et vinyl ether and the conversion to polymer was 35% after 10 h at +20.degree.. .