# CHARACTERIZATION OF BACTERIAL CELLULOSE-CHITOSAN COMPOSITE MEMBRANE GRAFTED WITH THEOPHYLLINE-IMPRINTED COPOLYMER

> Title: CHARACTERIZATION OF BACTERIAL CELLULOSE-CHITOSAN COMPOSITE MEMBRANE GRAFTED WITH THEOPHYLLINE-IMPRINTED COPOLYMER Page Range: p.167-186 Author(s): Mohd Redza Abd Rahman; Ida Idayu Muhamad; Siti Nur Hidayah Mohamad; Norhayati Pa'e File size: 345K Download the pdf (subscribers only) Buy the pdf (non-subscribers) Journal: Applied...

Canonical URL: https://polymerjournals.com/characterization-of-bacterial-cellulose-chitosan-composite-membrane-grafted-with-theophylline-imprinted-copolymer/
Published: 2013-03-01T00:00:00+00:00
Categories: Applied Polymer Composites

**Title: CHARACTERIZATION OF BACTERIAL CELLULOSE-CHITOSAN COMPOSITE MEMBRANE GRAFTED WITH THEOPHYLLINE-IMPRINTED COPOLYMER**
 Page Range: p.167-186
 Author(s): Mohd Redza Abd Rahman; Ida Idayu Muhamad; Siti Nur Hidayah Mohamad; Norhayati Pa'e
 File size: 345K
 ![](http://dload.gif) [Download the pdf](http://journals.asp?Page=111&JournalDownload=ON&JournalType=apc&JournalIssue=apc1-3&JournalID=101974&JIP=) (subscribers only)
 ![](http://handbuy.gif) Buy the pdf (non-subscribers)
 Journal: Applied Polymer Composites
 Issue Year: apc
 Volume: 1
 Issue No: No.3

**Abstract**
 Benzyl diethyl dithiocarbamate is immobilised on a composite bacterial cellulose chitosan membrane via a silane coupler. This treated membrane is grafted with theophylline-imprinted copolymer of methacrylic acid and ethylene glycol dimethacrylate by ultraviolet irradiation. The highest degree of grafting obtained is 0.3334% for r (weight ratio of monomers to bacterial cellulose-chitosan membrane) equal to 3.244 in mmol/ml. The synthesised membrane is prepared by using 0.5% chitosan solution containing 15.0% PEG and evaporating the solution for 2.5 hour after coating at room temperature. The relative flux of 3.69 L/m2.h at 12.5 bar is obtained. The average pore diameters are 135 A in dry state and 404 A in wet state. The chitosan and polyethylene glycol contents have a significant effect on membrane porosity and the flow rate of water through the membrane. The membrane tensile strength is larger than the plain bacterial cellulose support, in both wet and dry states. 25 Refs.

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