INTERPENETRATING POLYMER NETWORKS BASED ON OIL MODIFIED CASTOR OIL URETHANE AND POLY(METHYL METHACRYLATE)
| Autor: | Vilas D. Athawale, Suresh Kolekar |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Materials science
food.ingredient Polymers and Plastics General Chemistry Poly(methyl methacrylate) chemistry.chemical_compound Differential scanning calorimetry food Chemical engineering Linseed oil chemistry Castor oil visual_art Polymer chemistry Materials Chemistry Ceramics and Composites medicine visual_art.visual_art_medium Thermal stability Interpenetrating polymer network Methyl methacrylate medicine.drug Polyurethane |
| Zdroj: | Journal of Macromolecular Science, Part A. 37:65-79 |
| ISSN: | 1520-5738 1060-1325 |
| DOI: | 10.1081/ma-100101081 |
| Popis: | Castor oil was initially subjected to an interesterification reaction with linseed and tung oils and the resulting intermediate was used for the preparation of polyurethanes and their IPNs with poly(methyl methacrylate). They were characterized for their physico-mechanical, swelling, and thermal properties. The morphologies of IPNs were studied with the aid of scanning electron microscopy and differential scanning calorimetry. On comparing the mechanical properties of castor oil polyurethane (CU) and their IPNs (C-IPNs) with those of the castor oil modified with linseed and tung oil (L-IPN and T-IPN, respectively) it was found that L-IPNs showed higher tensile strength, hardness, and better compatibility than C-IPNs. All IPNs showed synergistic effect in elongation and exhibited similar thermal behavior with no significant change with respect to their composition. However, the castor oil polyurethane and their IPNs showed relatively higher elongation and better resistance to solvents. |
| Databáze: | OpenAIRE |
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