Investigating the Properties of in-situ polymerized Poly(butylene succinateco-ethylene terephthalate)/hydroxyapatite Nanocomposite

New nanocomposites of poly(butylene succinate-co-ethylene terephthalate)/nano hydroxyapatite were synthesized using two-step in-situ polycondensation. The microstructure and dispersion of nanoparticles in the nanocomposites were studied using proton nuclear magnetic resonance (1H-NMR) transmittance electron microscopy (TEM). It was found that presence of nano hydroxyapatite catalyzes the reaction and there is a chemical bond between nanoparticles and polymer which leads to a good particle dispersion but it doesn’t affect molecular sequence length. Introducing nano hydroxyapatite increases the hydrolytic degradability dramatically because of the presence of hydrophilic nanoparticle and lower crystallite size.

کلیدواژه ها:

Copolyester ، Nanocomposite ، Poly(butylene succinate-co-ethylene terephthalate) ، Nano hydroxyapatite ، Degradability