Detail of "3845-76-9"

Reference

High-molecular-weight cationic acrylamide derivative polymers

High-molecular-weight cationic acrylamide derivative polymers. (Kohjin Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 59020311 A2 2 Feb 1984 Showa, 6 pp. (Japanese). (Japan).Several reagents such as 90966-58-8 is used here. CODEN: JKXXAF. CLASS: IC: C08F020-60. APPLICATION: JP 82-130515 28 Jul 1982. DOCUMENT TYPE: Patent CA Section: 35 (Chemistry of Synthetic High Polymers) Section cross-reference(s): 40, 43, 60 The title polymers, useful as flocculating agents, oil absorbents, fibers, and sizes for paper, are manuf. by polymn. or copolymn. with other vinyl compds. of N-(aminoalkyl)(meth)acrylamide formed by thermal dissocn. of 5-methyl(hydrogen)-5-[N-(N,N-dialkylaminoalkyl)carbamoyl]-2-norborne ne. Thus, Me acrylate [96-33-3] and cyclopentadiene [542-92-7] were mixed at ￡40° to obtain Me 2-norbornene-5-carboxylate [6203-08-3], which was mixed with (N,N-dimethylaminopropyl)amine (I) [109-55-7] and NaH and heated at 70° to obtain 5-[N-(N,N-dimethylaminopropyl)carbamoyl]-2-norbornene [52838-46-7], which dissocd. at 450° to 99.5%-pure N-(N,N-dimethylaminopropyl)acrylamide (II) [3845-76-9] b. 100-115° at 1-2 mm Hg. II 8, acrylamide 15, water 100, 10% aq. (NH4)2S2O8 1, and 5% aq. NaHSO3 1 g were combined under N and heated at 45° for 2 h to obtain a copolymer (III) [84154-72-3], which as 0.5% aq. soln. had viscosity 150 cP at 20°, compared with 25 cP for III formed similarly by using II prepd. by direct substitution of I (II purity 99.4%). .

Manufacture of strongly basic anion exchangers by quaternization of amine group-contg

Manufacture of strongly basic anion exchangers by quaternization of amine group-contg. crosslinked copolymers.In this study， 3845-76-9 and 34730-67-1 are also used. Mocanu, Georgeta Cornelia; Carpov, Adrian; Mariniuc, Ecaterina (Institutul de Chimie Macromoleculara "Petru Poni", Rom.). Rom. RO 86348 B1 15 Mar 1985, 2 pp. (Romania) CODEN: RUXXA3. CLASS: IC: C08F120-56. APPLICATION: RO 82-109030 13 Nov 1982. DOCUMENT TYPE: Patent CA Section: 37 (Plastics Manufacture and Processing) Section cross-reference(s): 35, 38 Title exchangers, with high activity and mech. strength are manufd. by quaternization of crosslinked copolymers of (dimethylaminopropyl)(meth)acrylamide (I) or 3-acrylamido-3-methylbutyldimethylamine with Me2SO4, MeI, MeCl, or epichlorohydrin. MeOH (60 mm) contg. 30 g crosslinked I copolymer and 30 g Me2SO4 was stirred 6 h at 50° to give 32 g product with total ion exchange capacity 0.8-1.2 mequiv/mm. .