Detail of "25608-12-2"

Reference

Potentiometric titration of aqueous polyelectrolyte solutions

Potentiometric titration of aqueous polyelectrolyte solutions. Makhkamov, A. K.; Asadullina, Z. Sh.; Zainutdinov, S. A.; Akhmedov, K. S. (USSR). Deposited Doc., VINITI 314-74, 7 pp. Avail. BLLD (Russian) 1974. DOCUMENT TYPE: Report CA Section: 36 (Plastics Manufacture and Processing) In a polyelectrolyte system with a shift depending on the acidity and alkalinity of the system, with the formation of charges on the polymer during neutralization affecting the chain conformation and the supramol. structure of the polymer, titrn. curves obtained for salts of acrylic and methacrylic acid homo- and copolymers suggest an equil. The potentiometric titrn. of polyelectrolytes was used for detn. 24980-63-0 and 24980-58-3 which are cas registry numbers of chemicals are mentioned. of the structure of the polymer with respect to the ionic groups. The dependence of the H+ ion concn. on the degree of neutralization is related to many factors. Poly(acrylic acid) potassium salt [25608-12-2], acrylic acid-vinyl acetate copolymer [24980-58-3], poly(methacrylic acid) potassium salt [29297-93-6] methacrylic acid-vinyl acetate copolymer [24980-63-0] and poly(vinyl alcohol) [9002-89-5], differing in structure and alkalinity, were examd. and the structure of the polymer detd. the dependence of pH on the electrolyte concn. .

Study of the reaction of diamines with poly(styrenesulfonic acid) poly(acrylic acid) and their salt forms

Study of the reaction of diamines with poly(styrenesulfonic acid) poly(acrylic acid) and their salt forms. Soldatov, V. S.; Pestrak, A. F. (Inst. Obshch. Neorg. Khim., Minsk, USSR). Vestsi Akad. Navuk BSSR, Ser. Khim. Navuk, (2), 111-14 (Russian) 1978. CODEN: VBSKAK. ISSN: 0002-3590. DOCUMENT TYPE: Journal CA Section: 35 (Synthetic High Polymers) Viscosity changes in solns. of poly(styrenesulfonic acid) (I) [50851-57-5] (or its Li salt [9016-91-5], K salt [9011-99-8], NH4 salt [9011-98-7], or Cu salt [67124-02-1]) or poly(acrylic acid) (II) [9003-01-4] or its K salt [25608-12-2] contg. H2(CH2)nNH2 (n = 0 [302-01-2], 2 [107-15-3], or 6 [124-09-4]) show that several types of interactions are possible between polyelectrolyte and diamine. Plots of relative viscosity vs. a (no. of amine groups supplied/carboxy or sulfonic group) for I with diamines have a min. at a = 1, indicating a neutralization reaction involving both amino groups. H bonding is indicated between II and hydrazine. Apparently only 1 amino group of hexamethylenediamine interacts with II, while H2N(CH2)2NH2 forms an insol. reaction product. Viscosity vs. a plots for the polyacid salts also showed solvation effects and H bonding.