Synthesis of Stigmasterol-Molecularly Imprinted Polymer and its Adsoption Performance P Taba (a), Riskawati (a), NH Soekamto (a), P Budi (a), A Sumidarti,(b) St Fauziah (a*)
a) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Hasanuddin University Jl. Perintis Kemerdekaan KM. 10, Tamalanrea Indah, Tamalanrea, Kota Makassar, 90245
b) Department of Concervative Dentistry, Faculty of Dentistry, Hasanuddin University Jl. Perintis Kemerdekaan KM. 10, Tamalanrea Indah, Tamalanrea,
Kota Makassar, 90245
* stfauziah[at]unhas.ac.id
Abstract
Molecularly Imprinted Polymers, MIPs are synthetic polymer materials that can selectively recognize a certain molecule. Synthesis of the MIP was conducted via precipitation polymerization using methacrylate acid as a monomer, trimethylolpropane trimethacrylate as a cross linker, and stigmasterol as a target molecule. We studied the effect of temperature and concentration on the performance of MIP in rebinding the target molecule. Based on BET data, MIP was microporous polymer with a pore diameter of 1,69 nm. The adsorption of MIP was studied at an optimum time of 150 minutes. The adsorption of stigmasterol best fitted a pseudo second order model and a Langmuir isotherm with a capacity adsorption of 1.57 mg per gram.
