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  7. Volume 34
  8. Issue 03
Please use this identifier to cite or link to this item: http://localhost:80/xmlui/handle/123456789/20020
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dc.contributor.authorJIANCHAO CHEN-
dc.contributor.authorYAQING LIU-
dc.contributor.authorHONGFANG JIU-
dc.contributor.authorPEIHUA ZHAO-
dc.contributor.authorFUTIAN ZHU-
dc.date.accessioned2023-12-13T05:18:42Z-
dc.date.available2023-12-13T05:18:42Z-
dc.date.issued2012-06-20-
dc.identifier.citationChen, J., Liu, Y., Jiu, H., Zhao, P., & Zhu, F. (2012). Facile Synthesis of Poly (Carbonyl Urea) Oligomer (Pcuo) from Urea and Dipropyl Carbonate (Dprc) Applied as Nitrogen Slow-Release Fertilizers. Journal of the Chemical Society of Pakistan, 34(3).en_US
dc.identifier.issn0253-5106-
dc.identifier.urihttp://142.54.178.187:9060/xmlui/handle/123456789/20020-
dc.description.abstracta novel slow-release nitrogen fertilizer poly(carbonyl urea)oligomer (PCUO) was prepared by the condensation polymerization of urea and dipropyl carbonate (DPrC) at normal pressure, in which anhydrous potassium carbonate was as a catalyst. The oligomer was characterized by FT-IR, ¹H-NMR, and ¹³C-NMR spectroscopy, which showed that the average degree of PCUO was 1 to 5. The effects of the molar ratio of urea to DPrC, reaction time as well as the temperature on the yields were investigated and optimized. In addition, the slow-release behaviour of PCUO was evaluated in distilled water, which revealed that the product had good slow-release property.en_US
dc.description.sponsorshipThe chemical society of Pakistan is an approved society from the PSF.en_US
dc.language.isoenen_US
dc.publisherHEJ Research Institute of Chemistry, University of Karachi, Karachi.en_US
dc.titleFacile Synthesis of Poly (Carbonyl Urea) Oligomer (Pcuo) from Urea and Dipropyl Carbonate (Dprc) Applied as Nitrogen Slow-Release Fertilizersen_US
dc.typeArticleen_US
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