Anhidrit Içeren Polimer Organo-Kil Nanokompozitlerinin Tasarımı, Sentezi ve Karakterizasyonu

Abstract

The objective of this study is to design, synthesize and characterize poly(DHP-alt-MA), poly(DHP-co-MA-co-VA) and polymer/organo-clay nanocomposites containing anhydride groups whose biological activities are well-known. In accordance with these objectives, bentonite clay that provides us with host regions of nano-scale was modified so that the clay could be rendered suitable for intercalated polymerization. Three distinct alkyl ammonium salts were utilized and ion exchange reaction was achieved in order to modify clay. The achievement of modification was proved with the methods of XRD, ATR-FTIR, Raman, DMA and TGA. In the second stage, copolymer and terpolymer were synthesized and optimum conditions were identified to obtain polymers. Polymers that were synthesized at 1:1 and 1:2:1 monomer ratios, in the existence of AIBN used as initiator, with complex-radical copolymerization method were characterized using the methods of XRD, Raman, 1H-NMR, DSC, TGA, DTA and TEM. In the last stage of the study, nanocomposites of three different organo-clays that were prepared in the first stage and obtained with copolymers and terpolymers were synthesized. The proportion of organo-clays was 5.0 % of the monomers. The increase in the distances between interlayers of clays was measured with XRD. Dynamic mechanical properties were measured by DMA. Thermal stability and the differences of Tg values were observed with DSC, DTA and DMA. The synthesis of polymers within organo-clay gallery was observed with the same methods and proved with ATR-FTIR and NMR.