Reference

Quaternary ammonium anionic azo dye salt solutions

Quaternary ammonium anionic azo dye salt solutions. (Sandoz-Patent-G.m.b.In this study， 111-51-3 and 3030-47-5 are also used.H., Fed. Rep. Ger.). Ger. Offen. DE 3434920 A1 7 May 1986, 17 pp. (Germany) CODEN: GWXXBX. CLASS: ICM: C09B069-04. ICS: D06P001-40; D06P003-06; D06P003-32; D06P003-60; C09B067-24. APPLICATION: DE 84-3434920 22 Sep 1984. DOCUMENT TYPE: Patent CA Section: 41 (Dyes, Organic Pigments, Fluorescent Brighteners, and Photographic Sensitizers) Section cross-reference(s): 40, 43, 45 Anionic dyes contg. 31 cationic counterion R1R2N+R3R4 [R1, R2, R3 = C1-6 alkyl (optionally substituted with 1-2 groups of the series OH, NH2, Cl, Br, CN, C1-4 alkoxy, C5-7 cycloalkyl, C7-12 arylalkyl); R4 = (CH2)nNR12, (CH2)nN+R13, C3-6 alkylene, NR12; n = 1-8; R3 and R4 with a N can form a 5 or 6 member heterocyclic ring] can be formulated into concd. storage-stable solns. useful for dyeing polyamide fibers, cellulose fibers, paper, and leather. Thus, N-methylmorpholine was dissolved in water and reacted dropwise with propylene oxide forming a quaternary ammonium hydroxide. C.I. Direct Red 81 was added to this salt with H2O, forming I which dyed cotton in a red shade. .

Cyclopolymerization of tert-Butyl a-(Hydroxymethyl) Acrylate (TBHMA) Ether Dimer via Atom Transfer Radical Polymerization (ATRP)

All Rights Reserved. Cyclopolymerization of tert-Butyl a-(Hydroxymethyl) Acrylate (TBHMA) Ether Dimer via Atom Transfer Radical Polymerization (ATRP). Erkoc, Selda; Mathias, Lon J.; Acar, A. Ersin (Department of Chemistry, Bogazici University, Istanbul 34342, Turk.). Macromolecules, 39(26), 8936-8942 (English) 2006 American Chemical Society. CODEN: MAMOBX. ISSN: 0024-9297. DOCUMENT TYPE: Journal CA Section: 35 (Chemistry of Synthetic High Polymers) Atom transfer radical polymn. (ATRP) was used in the cyclopolymn. of a sym. dimethacrylate, the ether dimer of tert-Bu a-(hydroxymethyl)acrylate (TBHMA). The cyclopolymn. was successfully carried out with high cyclization efficiency in xylene using CuBr/PMDETA at 70 °C. 129743-64-2 and 3030-47-5 which are cas registry numbers are also used here. Cyclopolymers with six membered tetrahydropyran repeat units were obtained in high conversions with controlled mol. wts. and low polydispersities. It was found that at higher temps. (100 °C), the polymn. became less controlled and polydispersities increased slightly whereas at lower temps. (50 °C) the intermol. reactions lead to pendent vinyl groups and crosslinking. The livingness of the propagating cyclopolymers was shown through successful block copolymn. with tert-Bu acrylate where the former was used as macroinitiator. The phys. properties of the cyclopolymers were investigated and it was found that ring microstructures and polymer polydispersities affected thee glass transition temps. of the polymers obtained. .