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Citation: Hao Guangjie, Zhang Banghua, Song Moudao, Zhou Qingye. Synthesis and Properties of Waterborne Polyurethane with tert-Amine Groups[J]. Chinese Journal of Applied Chemistry, ;1998, 15(3): 30-34. shu

Synthesis and Properties of Waterborne Polyurethane with tert-Amine Groups

Institute of Polymer Chemistry, Nankai University, State Key Laboratory of Functional Polymer Material for Adsorption and Separation, Tianjin 300071

Received Date: 12 December 1997
Revised Date: 23 March 1998

The waterborne polyurethane(WPU) with tert-amine groups were prepared. The prepolymers having NCO and tert-amine were synthesized by the reaction of toluene-2,4-diisocyanate with polypropylene glycol, tert-ethanolamine and other multiols, then emulsified in dilute HCl of pH 5~6. The particle size data show that the tert-amine monomer with single hydroxyl is preferable to the dihydroxyl and trihydroxyl tert-amine. The final product WPU showes some characteristics of pseudoplastic fluid and its film has good water-resistance. It is also found that increasing the amounts of tert-amine could remarkably improve the mechanical properties and widen the tan W peak of the product.
- waterborne polyurethane,
- preparation,
- dimethylethanolamine,
- rheological property,
- mechanical property
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