Preparation, Structure And Properties Of New Acrylic Ester Functional Materials

Among all nature sciences, it was polymer science combining the foundational function and application function. Though it started late, it develops quite fast. The coordination and promotion among the macromolecules' synthesis, application and the researches of structures and functions result in the rapid development of polymer science. The synthesis and practice of the macromolecule materials (such as plastics, rubbers and fibres) was applied in modern industry, agriculture, transportation, medical health, military techniques and human daily lives with multi-function, high-quality, low-cost materials. The application of polymer science is one of the symbols of modern material civilization. The macromolecule industry has been the important support for national economics in all the countries. Along with oil resources dry up increasingly, macromolecule materials tend to have natural, composite and functional characteristics. This thesis focused on the synthesis of novel macromolecule materials: acrylic-acid absorbent resin with high salt tolerance, acrylic latex using CMC as protective colloid, avicel-acrylic composite microsphere and cellulose-acrylic molded plastic.Inverse suspension polymerization and solution polymerization were applied to the synthesis of acrylic-acid absorbent resin with high salt tolerance. The author of this thesis explored the water-absorbing mechanism of the resin, improved the salty-resistant capacity of the resin by adding chelating reagents such as EDTA, and investigated the effect of degree of neutralization of acrylic acid and amount of crossiinking agent on properties of absorbent resin. Non-ionic and anionic oligomers were acted as surfactants and modifiers respectively in inverse suspension polymerization, with advantages of stable reaction systems, ease control and efficient emulsification. The optimal conditions were: TX-10 and Span 20 5% (based on the amount of acrylic acid monomer, the same as below), N,N'-methylene bisacrylamide 0.06%, 80% degree of neutralization of acrylic acid, ammonium persulfate 0.53% and EDTA 2.5%. After adding EDTA, the resulted resins showed a water and salt-absorbance capacity...