Synthesis and Characterization of Dimethylolurea and Its Condensation Polymer
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Synthesis and Characterization of Dimethylolurea and Its Condensation Polymer
二羟甲基脲及其缩聚物的合成与表征
Vol. 29, Issue 6, Pages: 550-553(2008)
作者机构:
中北大学材料科学与工程学院山西省高分子复合材料工程技术研究中心
作者简介:
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Published:2008
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张斌, 刘亚青, 高建峰, et al. Synthesis and Characterization of Dimethylolurea and Its Condensation Polymer[J]. 2008, 29(6): 550-553.
DOI:
张斌, 刘亚青, 高建峰, et al. Synthesis and Characterization of Dimethylolurea and Its Condensation Polymer[J]. 2008, 29(6): 550-553.DOI:
Synthesis and Characterization of Dimethylolurea and Its Condensation Polymer
摘要
以尿素和甲醛为原料
在碱性水溶液中合成了二羟甲基脲
利用FTIR
1HNMR和元素分析对其结构进行了表征.同时以二羟甲基脲为原料
通过熔融缩聚制备了脲醛缩聚物
通过FTIR
1H NMR
1 3 C NMR和15N NMR对其结构进行了表征.实验结果表明:经二羟甲基脲熔融缩聚制备的长效脲醛缓释化肥
其可利用指数(AI)为98.6%
证明该法是合成长效脲醛肥料的有效途径.
Abstract
Dimethylolurea was synthesized from urea and formaldehyde in alkalescence and the compound was identified by FTIR
1 H NMR and elemental analysis.The condensation polymer of dimethylolurea was synthesized from dimethylolurea by melt polycondensation and identified by FTIR
1 H NMR
13 C NMR and 15 N NMR.The results show that the slow-release urea-formaldehyde fertilizer made from dimethlolurea by melt polycondensation has a high AI(98.6%)
so it indicates this method is very effective in the preparation of slow-release urea-formaldehyde fertilizer.
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references
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