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Pharmaceutical Sciences and Research (PSR)
Published by Universitas Indonesia
ISSN : 24072354     EISSN : 24770612     DOI : https://doi.org/10.7454/psr
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Aims Pharmaceutical Sciences and Research (PSR), an international, peer-reviewed, open access, and official journal from Faculty of Pharmacy, Universitas Indonesia, aims to disseminate research results and findings in Pharmaceutical Sciences and Practices. Major area of interest is natural products in drug discovery and development. We also consider other areas related to pharmaceutical sciences and practices. PSR publishes content in English language to promote the sharing of knowledge to international scholars. PSR publish 5 types of articles: 1. Original article 2. Case report 3. Case series 4. Review article 5. Mini review article Scope Researches in Pharmaceutical Sciences and Practices which are covered by PSR are within these subject areas: - Pharmacognosy and Phytochemistry - Pharmaceutical Chemistry - Pharmaceutical Technology - Pharmaceutical Biotechnology - Clinical Pharmacy - Pharmacology-Toxicology - Social and Administrative Pharmacy, including Pharmacoeconomy
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Articles 11 Documents
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Search results for , issue "Vol. 2, No. 3" : 11 Documents clear
Sintesis dan Karakterisasi Hidrogel Superabsorben Kitosan Poli(N-Vinilkaprolaktam) (Pnvcl) Dengan Metode Full Ipn (Interpenetrating Polymer Network) Wivanius, Nadhrah; Budianto, Emil
Pharmaceutical Sciences and Research Vol. 2, No. 3
Publisher : UI Scholars Hub

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Abstract

Polymer material used for hydrogel should have capability to swell and to keep water molecules in its structure without solubilised in water. Natural polymers has functional groups which can perform as active sites in modification to produce polymer with better characteristic. Chitosan is a natural polymer which has good swelling ability but lack of structural strength. Synthesis of chitosan hydrogel by interpenetrating polymer network (IPN) will increase its strength through crosslinking. In this research, the first step of modification was the synthesis of chitosan polymer network crosslinked by acetaldehyde. The next step was the synthesis of PNVCL polymer network crosslinked by N,N-methylbisacrylamide (MBA) through free radical polymerization of NVCL monomer with ammonium persulfat (APS) as the initiatior. Optimum reaction time, chitosan/PNVCL ratio (w/w %), concentration of crosslinker agent, and concentration of initiator had been observed. The optimum conditions were obtained as followed: 2 hours reaction, the ratio chitosan/PNVCL of 90:10 (w/w %), %-w MBA concentration of 0,5%, and APS concentration of 3%. The swelling ratio of the hydrogel was 380,66% while the crosslinking degree was 60,85%. Fourier transfor infrared spectroscopy (FTIR), Differential Scanning Calorimetry (DSC), Thermogravimetric analysis (TGA), Scanning Electron Microscope (SEM), and X-Ray diffraction (XRD) were used for the characterization of the hydrogel.

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