Reference

Electrically conductive porous films

Electrically conductive porous films. (Asahi Chemical Industry Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 58206636 A2 1 Dec 1983 Showa, 3 pp. (Japanese). (Japan).Some commonly used reagents like 9004-41-5 and 9003-54-7 are used in this experiment. CODEN: JKXXAF. CLASS: IC: C08J009-00; C25B011-02; C25B013-00. APPLICATION: JP 82-88650 25 May 1982. DOCUMENT TYPE: Patent CA Section: 38 (Plastics Fabrication and Uses) Section cross-reference(s): 56 An elec. conductive porous film, for use as an electrode or a filter, is prepd. by dispersing CuS in a nitrile group-contg. porous film. Thus, 100 g acrylonitrile-Me acrylate copolymer [24968-79-4] in 400 g 70% HNO3 was cast on a glass plate to a thickness of 500 m, immersed in a 30% HNO3 bath at 0° to give a gelled film, and immersed in 80° water under const. strain to give a membrane with 46% porosity. The film was then immersed in an aq. soln. contg. 10% CuSO4 and 10% NaHSO3 at 75° for 2 h to give a film contg. 10% CuS with apparent vol. resistivity 2 W-cm (40% porosity). .

Enzymic degradation of some cellulose derivatives

Enzymic degradation of some cellulose derivatives. Kasulke, Uwe; Dautzenberg, Horst; Polter, Erika; Philipp, Burkart (Inst. Polymerenchem. "Erich Correns", Dtsch. Akad. Wiss., Leipzig, Ger. Dem. Rep.).Some commonly used reagents like 9004-41-5 and 9012-54-8 are used in this experiment. Cellul. Chem. Technol., 17(5), 423-32 (English) 1983. CODEN: CECTAH. ISSN: 0576-9787. DOCUMENT TYPE: Journal CA Section: 43 (Cellulose, Lignin, Paper, and Other Wood Products) Section cross-reference(s): 7 In the hydrolysis of H2O-sol. CMC [9004-32-4], carboxyethyl cellulose [9004-42-6], Na cellulose sulfate [9005-22-5], sulfoethyl cellulose [9032-46-6], cyanoethyl cellulose (I) [9004-41-5] and Me cellulose (II) [9004-67-5] with cellulase [9012-54-8], culture filtrate of Gliocladium and Trichoderma viride, the effects of substituent and substitution degree (SD) on decrease of soln. viscosity, formation of glucose (III) [50-99-7], and increase of the amt. of reducing sugar in the system were detd. With increasing SD, rate of chain cleavage and final III yield decreased considerably; however, the final III yield also depended on the procedure of prepn. of the cellulose (IV) derivs., but was not influenced by the chem. structure of the substituents; in general, it was lower for homogeneously prepd. samples compared to those prepd. in heterogeneous systems. The zero order rate const. of viscosity drop due to enzymic degrdn. was dependent on the substituent only within the group of anionic IV derivs., while I and II showed a significant drop in soln. viscosity, suggesting that the change of substituent plays a major role in the detg. the rate of enzymic chain cleavage. .