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  1. Pastic Digital Repository
  2. MoST Organizations
  3. Pakistan Science Foundation
  4. Pakistan Science Foundation
  5. PSF Research Support (Scientific Research Journals)
  6. Journal of the Chemical Society of Pakistan
  7. Volume 34
  8. Issue 03
Please use this identifier to cite or link to this item: http://142.54.178.187:9060/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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