Reference

Synthesis of diiodomethane by phase-transfer catalysis

Synthesis of diiodomethane by phase-transfer catalysis. Zhang, Xiaoyou (Pharm. Sect., Daqing First Hosp., Peop. Rep. China). Huaxue Shiji, 5(5), 308, 304 (Chinese) 1983. CODEN: HUSHDR. DOCUMENT TYPE: Journal CA Section: 23 (Aliphatic Compounds) Heating 2 mol CH2Cl2 with 4. 56-37-1 and 75-09-2 are also in the experiment.8 mol NaI in H2O in the presence of 0.132 mol PhCH2N+Et3 Cl- at 100-110° gave 65.76% CH2I2 and 13.6% CH2ClI. .

Application of the transverse differential swelling stress model to the interpretation of Case II diffusion kinetics

Application of the transverse differential swelling stress model to the interpretation of Case II diffusion kinetics. Petropoulos, J. H. (Phys. Chem. Lab., Democritos Nucl. Res. Cent., Athens, Greece). J. Polym.There are some reagents with their cas registry numbers 9004-35-7 and 75-09-2 are used in this study. Sci., Polym. Phys. Ed., 22(2), 183-9 (English) 1984. CODEN: JPLPAY. ISSN: 0098-1273. DOCUMENT TYPE: Journal CA Section: 36 (Physical Properties of Synthetic High Polymers) Attention is called to an early observation (G. Hartley, 1949) of Case II diffusion kinetics during penetration of a liq. into a uniaxially prestretched polymer film along the axis of stretching (esp. penetration of CH2Cl2 at room temp. into cellulose acetate film). Application of a previously (P., 1978) developed transverse differential swelling stress model to these exptl. conditions is described. The model can predict Case II diffusion kinetics in a phys. meaningful manner and will also explain the transition of the kinetics of the above system into normal or hindered diffusion regimes as either the degree of stretching or its direction relative to that of penetration is changed. .