A novel polymer of Al-2(SO4)(3)-poly(acrylamide-co-2-acrylamido-2-methyl-1-propanesulfonate ) ionic hybrid prepared by dispersion polymerization

作者：Wu, Y. M.^*; Zhao, W. P.; Xu, J.; Wang, C. X.

来源：Express Polymer Letters, 2010, 4(3): 188-195.

DOI：10.3144/expresspolymlett.2010.24

• smart polymers
• dispersion polymerization
• polyacrylamide
• organic-inorganic hybrids
• aluminum sulfate

A novel polymer Al-2(SO4)(3)-poly(acrylamide-co-2-acrylamido-2-methyl-1-propanesulfonate) (Al-2(SO4)(3)P(AM/AMPS)) had been synthesized by dispersion polymerization in an aqueous solution of ammonium sulfate and aluminum sulfate, using poly(2-acrylamido-2-methyl-1-propanesulfonate) P(AMPS) as stabilizer, acrylamide (AM) and 2-acrylamido-2-methyl-1-propanesulfonate (AMPS) as monomers, poly(2-acrylamido-2-methyl-1-propanesulfonate) (PAMPS) as stabilizer and [2-(2-imidazdino-2-yl)propane]dihydrochloride (VA-044) as initiator. The average particle size of polymer dispersion ranged from 0.2 to 0.3 mu m, the molecular weight was from 4.3.10(6) to 5.7.10(6) g.mol(-1). The polymer was characterized by infrared (IR) spectroscopy, thermogravimetry (TGA) and transmission electron microscopy (TEM). The swelling property of the dispersion polymer was studied by particle size distribution. When the polymer dispersion was diluted with deionized water, particle sizes decreased several times. When the polymer dispersion was diluted with salt water, the particle size increased with increasing concentration of salt. The effects of Al-2(SO4)(3) and stabilizer on the particle size and the relative molecular weight of the polymer were investigated, respectively. The optimum conditions for the stable Al-2(SO4)(3)-P(AM/AMPS) dispersion were that the concentration of Al-2(SO4)(3) was 1.12 wt%, the concentration of PAMPS stabilizer was 3 wt% and the concentration of initiator was 0.2 mol.l(-1) and the monomers concentration was 14 wt%.

• 出版日期2010-3
• 单位青岛科技大学