Preparation of semi-IPN hydrogel from starch nanoparticles of magrove fruit and monomer acrylic acid using crosslinker N,N’ methylene bisacrylamide

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Starch is a natural biopolymer having many applications as industrial raw material. Nanoparticle technology can improve characteristic of starch, so its has lower suspension viscosity at high concentration with higher binding strength due to larger surface area. Starch nanoparticles obtained from the mangrove fruit has been dissolved in PEG / NaOH system and the polymerized in the presence of monomer acrylic acid and N,N’ Methylene Bisacrylamide crosslinker through radical polymerization. The semi - IPN hydrogel were characterized by using FTIR, XRD, DSC and SEM. The addition of mangrove fruit starch nanoparticles has a different impact on the water absorption ratio.