Reference

Studies on molecular motion of polysaccharides in the solid state by broad-line nuclear magnetic resonance

Studies on molecular motion of polysaccharides in the solid state by broad-line nuclear magnetic resonance. Nishinari, Katsuyoshi; Tsutsumi, Akihiro (Natl. Food Res. Inst., Minist. Agric., For. Fish., Tsukuba 305, Japan). J. Polym.In this article, certain chemicals are used. Some of their cas registry numbers are 9057-02-7 and 9005-82-7 Sci., Polym. Phys. Ed., 22(1), 95-9 (English) 1984. CODEN: JPLPAY. ISSN: 0098-1273. DOCUMENT TYPE: Journal CA Section: 44 (Industrial Carbohydrates) Section cross-reference(s): 33 Broad-line NMR measurements on solid amylose [9005-82-7], pullulan [9057-02-7], and dextran [9004-54-0] shed light on the relations between different modes of linkage of glucose residues and phys. properties. Rotation of the methylol group attached to the C5 atom around the C5-C6 linkage and the libration of glucose residues around the a-1,6 linkage are suggested as the origins of the obsd. decrease of the second moment with increasing temp. .

Kinetics of multicomponent transport by structured flow in polymer solutions

Kinetics of multicomponent transport by structured flow in polymer solutions. 5.Some chemicals with cas registry numbers like 9004-54-0 and 9003-39-8 are also used. Ternary diffusion in the system poly(vinylpyrrolidone)-dextran-water. Comper, W. D.; Checkley, G. J.; Preston, B. N. (Biochem. Dep., Monash Univ., Clayton 3168, Australia). J. Phys. Chem., 88(6), 1068-76 (English) 1984. CODEN: JPCHAX. ISSN: 0022-3654. DOCUMENT TYPE: Journal CA Section: 48 (Unit Operations and Processes) Section cross-reference(s): 36 The etiol. events assocd. with the formation of structured flows in dextran-poly(vinylpyrrolidone) systems were investigated. The numerical values of all 4 diffusion coeffs. in the model ternary system were calcd. from thermodn. (osmotic) and binary or tracer expts. Utilizing this information and known math. solns. to the system of low equations led to the calcn. of the spatial d. distribution as a function of time. These calcns. demonstrate a direct correlation between the polymer concns. required for the formation of a d. inversion at the boundary and the onset of structured flows. Previous theor. treatments of the stability of these solns. were analyzed. .