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Keywords: Nano-SiO2; TiO2; poly(acrylic acid) (PAA); thermal behavior; hydrogels. The objective of this work was to examine the effect of inorganic additives on thermal behavior of homo-and hetero-polymeric hydrogel. Nano SiO2 and TiO2 doped acrylic acid (AA) based homo-polymeric and acrylic acid/vinyl pyrrolidone (AA/VP) based hetero-polymeric hydrogels were synthesized by using in-situ free radical polymerization technique. Additives were used in the ratio of 0.005, 0.5 and 1 (wt %) on AAdoi:10.17628/ecb.2019.8.399-404 fatcat:orjv77uc45bgbmank5kgm67ple