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Polymers from renewable resources. IX. Interpenetrating polymer networks based on castor oil polyurethane poly(hydroxyethyl methacrylate): Synthesis, chemical, thermal, and mechanical properties

1997; Wiley; Volume: 63; Issue: 5 Linguagem: Inglês

10.1002/(sici)1097-4628(19970131)63

1097-4628

Pritishree Nayak, D. Mishra, Dambarudhar Parida, K.C. Sahoo, M. Nanda, S. Lenka, P. L. Nayak,

Lignin and Wood Chemistry

Journal of Applied Polymer ScienceVolume 63, Issue 5 p. 671-679 Polymers from renewable resources. IX. Interpenetrating polymer networks based on castor oil polyurethane poly(hydroxyethyl methacrylate): Synthesis, chemical, thermal, and mechanical properties Pritishree Nayak, Corresponding Author Pritishree Nayak Laboratory of Polymers and Fibers, Department of Chemistry, Ravenshaw College, Cuttack - 753 003, Orissa, IndiaLaboratory of Polymers and Fibers, Department of Chemistry, Ravenshaw College, Cuttack - 753 003, Orissa, India===Search for more papers by this authorD. K. Mishra, D. K. Mishra Laboratory of Polymers and Fibers, Department of Chemistry, Ravenshaw College, Cuttack - 753 003, Orissa, IndiaSearch for more papers by this authorD. Parida, D. Parida Laboratory of Polymers and Fibers, Department of Chemistry, Ravenshaw College, Cuttack - 753 003, Orissa, IndiaSearch for more papers by this authorK. C. Sahoo, K. C. Sahoo Laboratory of Polymers and Fibers, Department of Chemistry, Ravenshaw College, Cuttack - 753 003, Orissa, IndiaSearch for more papers by this authorM. Nanda, M. Nanda Laboratory of Polymers and Fibers, Department of Chemistry, Ravenshaw College, Cuttack - 753 003, Orissa, IndiaSearch for more papers by this authorS. Lenka, S. Lenka Laboratory of Polymers and Fibers, Department of Chemistry, Ravenshaw College, Cuttack - 753 003, Orissa, IndiaSearch for more papers by this authorP. L. Nayak, P. L. Nayak Laboratory of Polymers and Fibers, Department of Chemistry, Ravenshaw College, Cuttack - 753 003, Orissa, IndiaSearch for more papers by this author Pritishree Nayak, Corresponding Author Pritishree Nayak Laboratory of Polymers and Fibers, Department of Chemistry, Ravenshaw College, Cuttack - 753 003, Orissa, IndiaLaboratory of Polymers and Fibers, Department of Chemistry, Ravenshaw College, Cuttack - 753 003, Orissa, India===Search for more papers by this authorD. K. Mishra, D. K. Mishra Laboratory of Polymers and Fibers, Department of Chemistry, Ravenshaw College, Cuttack - 753 003, Orissa, IndiaSearch for more papers by this authorD. Parida, D. Parida Laboratory of Polymers and Fibers, Department of Chemistry, Ravenshaw College, Cuttack - 753 003, Orissa, IndiaSearch for more papers by this authorK. C. Sahoo, K. C. Sahoo Laboratory of Polymers and Fibers, Department of Chemistry, Ravenshaw College, Cuttack - 753 003, Orissa, IndiaSearch for more papers by this authorM. Nanda, M. Nanda Laboratory of Polymers and Fibers, Department of Chemistry, Ravenshaw College, Cuttack - 753 003, Orissa, IndiaSearch for more papers by this authorS. Lenka, S. Lenka Laboratory of Polymers and Fibers, Department of Chemistry, Ravenshaw College, Cuttack - 753 003, Orissa, IndiaSearch for more papers by this authorP. L. Nayak, P. L. Nayak Laboratory of Polymers and Fibers, Department of Chemistry, Ravenshaw College, Cuttack - 753 003, Orissa, IndiaSearch for more papers by this author First published: 07 December 1998 https://doi.org/10.1002/(SICI)1097-4628(19970131)63:5 3.0.CO;2-XCitations: 38AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract A number of polyurethanes were synthesized by reacting castor oil with hexamethylene diisocyanate, varying the NCO/OH ratio. The polyurethanes were reacted with 2-hydroxyethyl methacrylate (HEMA) to prepare the interpenetrating polymer networks (IPNs) using benzoyl peroxide as the initiator and ethylene glycol dimethacrylate (EGDM) as the crosslinker. The IPNs are partly soluble in some of the solvents and are less resistant to alkali, but more resistant to acid. The solvent absorption is more pronounced in benzene than in toluene. A novel computerized LOTUS package was used to calculate the kinetic parameters. All the IPNs decomposed with 2–4% weight in the temperature range of 0 to 200°C; 10% weight loss occurs at 300°C and 40% weight loss occurs at 400°C. There is a rapid weight loss from 10 to 90% in the temperature range of 400–500°C. From the kinetic data, it is clear that the degradation process of the IPNs is slower in the temperature range 300–400°C and faster in the temperature range of 440–560°C. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 63: 671–679, 1997 Citing Literature Volume63, Issue531 January 1997Pages 671-679 RelatedInformation