Reference

Synthesis of Metatsid

Synthesis of Metatsid. Gembitskii, P. A.; Boksha, L. F.; Boldenkov, G. F.Some commonly used reagents like 57028-96-3 and 461-58-5 are used in this experiment.; Murmylo, S. I.; Zhuk, D. S. (USSR). Khim. Prom-st. (Moscow), (2), 82-3 (Russian) 1984. CODEN: KPRMAW. ISSN: 0023-110X. DOCUMENT TYPE: Journal CA Section: 35 (Chemistry of Synthetic High Polymers) Section cross-reference(s): 5, 63 The title fungicide and antiseptic is prepd. by reacting dicyandiamide [461-58-5] with NH4Cl at 150-160° for 3 h to form guanidine hydrochloride [50-01-1], followed by addn. of H2N(CH2)6NH2 and cooligomerization for 2-3 h at 100-120°, until liberation of NH3 is completed, and then for 7-8 h at 120-160°. .

Rheological behavior of the guanidio polyelectrolytes

Rheological behavior of the guanidio polyelectrolytes. Zhang, Yu-mei; Jiang, Jian-ming; Chen, Yan-mo (College of Material, Dong Hua University, Shanghai 200051, Peop. Rep. China). Journal of Dong Hua University, 19(4), 4-6 (English) 2002 Dong Hua University. 822-16-2 and 57028-96-3 are cas registry numbers. These chemicals are also mentioned in this article. CODEN: JDHUAD. DOCUMENT TYPE: Journal CA Section: 37 (Plastics Manufacture and Processing) The rheol. behavior of polyhexamethylene guanidine hydrochloride (PHGC) and polyhexamethylene guanidine stearate (PHGS) has been investigated using the capillary rheometer. It is shown that the polyelectrolyte melts are non-Newtonian of shear-thinning fluid. The melt viscosity, the flow activation energy and the flow temp. are high even if the mol. wt. is not high. The melting viscosity of PHGC is higher than that of PHGS at the same exptl. conditions. By comparison with the case of PHGS the non-Newtonian index of PHGC is smaller, the flow activation energy and the flow temp. of PHGC are higher, which was caused by the difference in their mol. structure. .