𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Sorption and diffusion of aldehydes and ketones into natural rubber blends

✍ Scribed by Siddaramaiah; S. Roopa; U. Premakumar; A. Varadarajulu

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
221 KB
Volume
67
Category
Article
ISSN
0021-8995

No coin nor oath required. For personal study only.

✦ Synopsis

Sorption and diffusion of aldehydes and ketones through different NR blends of bromobutyl (BIIR), chlorobutyl (CIIR), neoprene, EPDM, polybutadine, and SBR were studied at 25, 40, and 60ЊC. From the data, the Arrhenius activation parameter for diffusion, E D , was determined. From the temperature dependence of the sorption constant, the enthalpy of sorption, DH, and entropy of sorption, DS, were also determined. The activation parameters are found to follow the conventional trend. Transport properties are affected by the nature of the interaction of solvent molecule, by its size, and also by the structural variation of the elastomers. For all the solvents, the polymer blends remained intact but the blends in the presence of benzaldehyde showed degradative reactions at higher temperature.

πŸ“œ SIMILAR VOLUMES

Sorption and diffusion of aliphatic hydr
Sorption and diffusion of aliphatic hydrocarbons into crosslinked natural rubber
✍ G. Unnikrishnan; Sabu Thomas πŸ“‚ Article πŸ“… 1997 πŸ› John Wiley and Sons 🌐 English βš– 196 KB πŸ‘ 1 views

The sorption and transport of four aliphatic hydrocarbons into natural rubber crosslinked by different vulcanization systems [conventional (CV), efficient (EV), peroxide (DCP) and a mixed system consisting of sulfur and peroxide (mixed)] were investigated in the temperature interval of 28-60ЊC. Of t

Sorption/desorption and diffusion kineti
Sorption/desorption and diffusion kinetics of ketones and nitriles into fluoropolymer membranes
✍ Tejraj M. Aminabhavi; Sujata F. Harlapur πŸ“‚ Article πŸ“… 1997 πŸ› John Wiley and Sons 🌐 English βš– 286 KB πŸ‘ 1 views

Analysis of sorption/desorption and diffusion kinetics of ketones and nitriles at 25, 44, and 60ЊC into three Du Pont's VITON fluoropolymer membranes loaded with different amounts of carbon black has been undertaken by use of a sorption/ desorption technique. The transport results are affected by th

Thermal behavior of natural rubber and c
Thermal behavior of natural rubber and chlorinated rubber blends
✍ J. W. Cook; S. Edge; D. E. Packham; A. S. Thompson πŸ“‚ Article πŸ“… 1997 πŸ› John Wiley and Sons 🌐 English βš– 191 KB πŸ‘ 2 views

A solid-state chemical reaction occurs when a solvent cast film of a blend of masticated natural rubber and chlorinated natural rubber is heated in the presence of air at 150ЊC. The thermal behavior of solvent cast films of chlorinated natural rubber, masticated natural rubber, and a 1 : 1 w /w blen

Processing characteristics and physicome
Processing characteristics and physicomechanical properties of natural rubber and liquid natural rubber blends
✍ F. E. Okieimen; A. K Akinlabi πŸ“‚ Article πŸ“… 2002 πŸ› John Wiley and Sons 🌐 English βš– 104 KB πŸ‘ 2 views

## Abstract Investigations into the processing characteristics and physicomechanical properties of natural rubber (NR) modified with liquid natural rubber (LNR) were carried out. Liquid natural rubber samples (of different molecular weights) were first produced by depolymerization of natural rubber

Sorption, diffusion, and permeation of e
Sorption, diffusion, and permeation of esters, aldehydes, ketones, and aromatic liquids into tetrafluoroethylene/propylene at 30, 40, and 50Β°c
✍ Sangeeta B. Kulkarni; Mahadevappa Y. Kariduraganavar; Tejraj M. Aminabhavi πŸ“‚ Article πŸ“… 2003 πŸ› John Wiley and Sons 🌐 English βš– 170 KB πŸ‘ 1 views

## Abstract The coefficients of sorption, diffusion, and permeation for five organic esters, three aldehydes, one cyclic ketone, and three substituted aromatic liquids have been calculated for tetrafluoroethylene/propylene copolymer membranes at 30, 40, and 50Β°C with the sorption–gravimetric techni