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Title of Journal: J Polym Res

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Abbravation: Journal of Polymer Research

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Springer Netherlands

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DOI

10.1007/bf02022042

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ISSN

1572-8935

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Synthesis of ureaformaldehyde resin by melt conde

Authors: Yaqing Liu Yu Tian Guizhe Zhao Youyi Sun Futian Zhu Yang Cao
Publish Date: 2008/04/29
Volume: 15, Issue: 6, Pages: 501-
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Abstract

Traditional method of synthesizing ureaformaldehyde UF resins is condensation polymerization with formaldehyde and urea in aqueous solution which leads to the low resistance of UF resins against the influence of water and moisture and results in the high formaldehyde emission A new method of melt condensation polymerization was used to synthesis UF resin by paraformaldehyde with urea Fouriertransform infrared spectroscope and Carbon13 nuclear magnetic resonance were performed to elucidate the uron rings structural characteristics of UF resin by the synthetic route The stability during storage and application were characterized by measuring concentration of methanol and free formaldehyde and DSC and TG analysis respectively The results show that UF resin synthesized by melt condensation polymerization has lower content of free formaldehyde high thermal stability and better stability during storageThis material is based upon work supported by the Project of Science and Technology Breakthroughs of Shanxi Province and the Project of Achievement Spread of Shanxi Province No 033004 and No 200671037 The authors express their thanks to Research Center for Engineering Technology of Polymeric Composites of Shanxi Province for their encouragement and keen interest in this work

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