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http://nopr.niscpr.res.in/handle/123456789/29985| Title: | Semi-interpenetrating polymer networks based on liquid natural rubber |
| Authors: | Pillai, V Bhoothalingam Francis, D Joseph |
| Issue Date: | Dec-1994 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Semi-interpenetrating polymer networks based on liquid natural rubber polyurethane and linear polystyrene have been synthesized under different experimental conditions. The Semi-IPNs are found to be tough films and their physical, mechanical and thermal properties have been evaluated and compared with that of the homopolymer polyurethane and corresponding Full-IPNs. The density, shore-A Hardness and tensile strength of the Semi-IPNs indicated an increasing trend while percentage elongation at break decreases with increase in polystyrene content and also with increase in NCO/OH ratio. Crosslink density measurements indicated a possible phase inversion process for similar variations. These properties are found to be higher for Full-IPNs than Semi-IPNs except elongation at break, which is lower than Semi-IPNs. A marginal improvement in the thermal stability of Full-IPNs than the Semi-IPNs has been observe. |
| Page(s): | 355-358 |
| ISSN: | 0975-1017 (Online); 0971-4588 (Print) |
| Appears in Collections: | IJEMS Vol.01(6) [December 1994] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJEMS 1(6) 355-358.pdf | 307.93 kB | Adobe PDF | View/Open |
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