Syntheses And Characterization Of Water-soluble Functional Polymers

Functional polymer is one of the important trends in advanced materials development. Multi-functional polymers prepared by introducing another polymer into the matrix materials to enhance their intension or tenacity have attracted extensive attention in recent years. This namely advanced functional polymer material posses much merits of its components and hence has promised application in the high-performance materials.In this paper, acrylamide-crylic acid hydrosol was synthesized by copolymerizating of acrylamide and crylic acid monomers in aqueous solution. The as-resulting copolymerizations were used to fabricate temperature and pH sensitive films and the intension and structure-stability were reinforced by hydroxylated carbon nanotubes (MWCNTs). The sensitivity of the film to environment based on its swelling characters were invested and the result shows that the film have excellent response to temperature and pH. The swelling of the films increased with the increase of temperature. In the pH aspect, the films have little swelling in acid medium while have large swelling in alkaline medium. And there is a considerable raise in the pH range of 6~8. Moreover, the swelling performances of the film are reversible, which is very important to practical application in environment sensitive materials.As an excellent chelating agent and meallic ion indicator, 8-hydroxyl quinoline has wildly application in many fields. Organic luminescent materials prepared by 8-hydroxyl quinoline metal chelate complexes are ongoing research hotspots, which have general-accepting advantage of low driving voltage and high luminous efficiency. In this paper, water-soluble polymer with acrylmide-acrylic acid copolymer main chains and 5-methylene-8-hydroxyquinoline side groups and its metal chelate complexes, namely, poly-8-hydroxyquinoline was synthesized.Poly-8-hydroxyquinoline has excellent chelate ability and ionic selectivity. The change of fluoresent characteristic of the poly-8-hydroxyquinoline chelate gives these materials a promised prospect in metallic-ion sensors. In this paper, the Uv-vis and fluorescence spectrums of poly-8-hydroxyquinoline and its different-metallic-ion chelate compound were probed in detail.The paper also discussed the structure and style of organic light-emitting devices (OLED), following summarized the influence factors and problems. Novel film-style OLEDs with Poly(N-vinylcarbazole) as cavity transport layer, Poly-8-hydroxyquinoline-metallic-ion-chelate compound as luminous layer were prepared by electrostatic self-assembly and spin coating methods. And FT-IR, Uv-vis, PL and EL spectrum were used to character the structure and performance. Film-forming properties of organic molecules and polyelectrolyte on solid-state materials, current-illumination characteristics of super-thin organic film composition were also investigated.