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Separation Science and Technology Volume 54, 2019 - Issue 3: Recent Trends on Membranes and Separation Techonlogy
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Articles

Cross-linked thin poly(vinyl alcohol) membrane supported on polysulfone in tea polyphenol separation

Mayank SaxenaMembrane Science & Separation Technology Division, CSIR-Central Salt & Marine Chemicals Research Institute (CSIR-CSMCRI), Council of Scientific & Industrial Research (CSIR), Bhavnagar, IndiaView further author information
,
Sanjay G. ChaudhriMembrane Science & Separation Technology Division, CSIR-Central Salt & Marine Chemicals Research Institute (CSIR-CSMCRI), Council of Scientific & Industrial Research (CSIR), Bhavnagar, IndiaView further author information
,
Arun K. DasAnalytical and Environmental Science Division and Centralized Instrument Facility, CSIR-Central Salt & Marine Chemicals Research Institute (CSIR-CSMCRI), Council of Scientific & Industrial Research (CSIR), Bhavnagar, IndiaView further author information
,
Puyam S. SinghMembrane Science & Separation Technology Division, CSIR-Central Salt & Marine Chemicals Research Institute (CSIR-CSMCRI), Council of Scientific & Industrial Research (CSIR), Bhavnagar, IndiaCorrespondence[email protected] [email protected]
View further author information
&
A. BhattacharyaMembrane Science & Separation Technology Division, CSIR-Central Salt & Marine Chemicals Research Institute (CSIR-CSMCRI), Council of Scientific & Industrial Research (CSIR), Bhavnagar, IndiaCorrespondence[email protected] [email protected]
View further author information
Pages 343-359 | Received 31 Jan 2018, Accepted 31 Aug 2018, Published online: 27 Sep 2018
 
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ABSTRACT

Cross-linked polymeric colloids are coated over porous polysulfone support by a simple method to prepare high-flux membrane for separation of tea polyphenols. The colloidal particles were prepared by electrostatic interaction and cross-linking between poly(vinyl alcohol) and maleic acid. The membrane exhibited >90% rejection of polyethylene glycol of 6000 Da molecular weight. The membranes exhibited flux of about 15–20 LMH with 70–90% polyphenol retention depending upon the coating and support types at 500 psi and had shown stability under continuous running of the separation experiments in water or methanol at pressurized condition.

Acknowledgements

The instrumentation facility provided by ‘Analytical Discipline & Centralized Instrument Facility’, CSIR-CSMCRI, Bhavnagar, is also highly acknowledged. CSIR-CSMCRI Communication Number 22/2018.

Additional information

Funding

This work was supported by the Council of Scientific and Industrial research, India: [Grant Number (9/1/CS/CSMCRI (1)/2012-13-PPD) under 12th Five-year plan CSIR Network project].

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