Detail of "853-68-9"

Reference

Radical anion quenching by emulsion polymer components

Radical anion quenching by emulsion polymer components. McGinniss, Vincent D.; Kah, Ann F. (Glidden Coatings Resins Div., SCM Corp., Strongsville, Ohio, USA). J. Coat. Technol., 49(634), 61-76 (English) 1977. CODEN: JCTEDL. DOCUMENT TYPE: Journal CA Section: 35 (Synthetic High Polymers) Section cross-reference(s): 22 SO4-× [12143-45-2], normally formed from persulfate as the first step in emulsion polymns., rapidly undergoes bimol. decay. It can be intercepted by vinyl compds. having structural characteristics correlatable with the ionization potential of the monomer. Certain org. mols. and nonionic surfactants showed similar SO4-× interaction behavior and can compete with the monomer consumption of SO4-× under conditions of availability and emulsion polymn. and chem. structure. The quenching of SO4-× by the various org. compds. was studied by measuring the amt. of absorption of the longer-lived CO3-× [16518-46-0] at 600 nm in the presence of the compds.; SO4-× was produced by flash photolysis of K2S2O8 in soln. and CO3-× was produced by the reaction of SO4-× with NaHCO3 or disodium 2,6-anthraquinonedisulfonate [853-68-9]. Other excited-state transients examined were O3- [12596-80-4], produced by K2S2O8 at pH 312 and obsd. at lmax = 430 nm, and a species with lmax = 400-50 nm, produced by flashing K2S2O8 in the presence of poly(vinylpyrrolidone) [9003-39-8].

Protonic acid-containing crosslinkable resins, their crosslinked products, and their use in fuel cells

Protonic acid-containing crosslinkable resins, their crosslinked products, and their use in fuel cells. Ishikawa, Junichi; Nakata, Tomoyuki; Fujiyama, Akiko; Omi, Katsuhiko; Tamai, Masashi (Mitsui Chemicals Inc., Japan). Jpn. Kokai Tokkyo Koho JP 2004026889 A2 29 Jan 2004, 78 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: ICM: C08G069-26. ICS: C08G073-10; C08G073-22; H01B001-06; H01M008-02; H01M008-10. APPLICATION: JP 2002-181632 21 Jun 2002. DOCUMENT TYPE: Patent CA Section: 52 (Electrochemical, Radiational, and Thermal Energy Technology) Section cross-reference(s): 35, 38 The resins have crosslinkable groups (e.g. 853-68-9 and 651326-40-8 are cas registry numbers of chemicals which are used as reagents here., carbonyl, C1-10 alkyl bonded to arom. ring) and protonic acid groups (e.g., SO3H) and can be crosslinked by light, heat, or electron beam. Photocrosslinked products of the resins and fuel cell ion-conducting polymer membranes obtained from the resins or the photocrosslinked products are also claimed. The crosslinked resins have high ion cond. and MeOH resistance, so that the fuel cells such as DFFC using the membranes have high durability. .