引用本文:
唐黎明, 戴彧. pH响应性聚氨酯薄膜的制备[J]. 应用化学,
2003, 20(6): 609-610.
Citation: TANG Li-Ming, DAI Yu. Preparation of pH-Sensitive Polyurethane Films[J]. Chinese Journal of Applied Chemistry, 2003, 20(6): 609-610.
Citation: TANG Li-Ming, DAI Yu. Preparation of pH-Sensitive Polyurethane Films[J]. Chinese Journal of Applied Chemistry, 2003, 20(6): 609-610.
pH响应性聚氨酯薄膜的制备
English
Preparation of pH-Sensitive Polyurethane Films
Abstract:
A series of urethane acrylate anionomers (PU) in molar ratio of n(PEG):n(DMPA):n(HMDI):n(2-HPA)=0.3:0.7:(1.2~1.5):(0.44~1.1) were prepared in 3 steps.The structure of the prepolymer was confirmed by FT-IR and 1H NM R analysis.pH-sensitive cross-linked films were then obtained by UV polymerization of UAA.The swelling property of the films with respect to pH was much affected by the composition of the prepolymer.The film could swell and deswell rapidly and reversibly in buffer solutions of pH=3 and pH=11.
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Key words:
- polyurethane
- / film
- / pH sensitivity
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