关键词: 甲基丙烯酸酯, 冻胶纺丝, 吸附功能纤维, 核磁共振(NMR), 氢键作用

Abstract: The attempt was made to prepare fiber which could absorb organic matter and to investigate its peculiarity. Firstly, resin was synthesized by the copolymerization of n-butyl methacrylate(BMA) and hydroxyethyl methacrylate(HEMA) when benzoyl peroxide(BPO) was used as an initiator, then crosslinking structure of copolymer was investigated by Fourier-transform infrared(FTIR) and nuclear magnetic resonance(NMR) spectrometer and the results show that chemical crosslinking structure was not formed between macromolecules, but intermolecular and intramolecular hydrogen bonding action existed so that physical crosslinking structure which located between molecules of copolymer was formed. Functional fiber to absorb low molecular weight organic matter was prepared by gelation-spinning and the effect of mass fraction of HEMA in monomer feed ratio on saturated absorbency was studied, it could be found from the result that not only toluene and trichloroe-thylene saturated absorbency increased with the increase of mass fraction of HEMA but also trichloroethylene saturated absorbency was higher than toluene saturated absorbency for fiber obtained by the same mass fraction of HEMA in monomer feed ratio. Crystallization behavior of fibers was analyzed by wide angle X-ray diffractometer(WAXD) and universal thermal gravimetric analyzer and the result indicates that as mass fraction of HEMA being enhanced, the crystallization ability was weakened. Finally, the result which was analyzed by scanning electron microscope(SEM) shows that mass fraction of HEMA had a great impact on the surface morphology of fibers.

Key words: Methacrylate, Gelation-spinning, Absorptive functional fiber, Nuclear magnetic resonance(NMR), Hydrogen bonding action