Chem. J. Chinese Universities ›› 2013, Vol. 34 ›› Issue (3): 698.doi: 10.7503/cjcu20120680

• Polymer Chemistry • Previous Articles     Next Articles

Preparation of Interpenetrating Network Polyvinyl Alcohol Composite Coatings for Solid-phase Microextraction

ZHANG Meng-Juan1, FEI Xu2, TIAN Jing3, FAN Shu-Qi1, WANG Yi3   

  1. 1. School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, China;
    2. Modern Education Technical Department, Dalian Polytechnic University, Dalian 116034, China;
    3. School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, China
  • Received:2012-07-18 Online:2013-03-10 Published:2013-02-18

Abstract:

PVA/SiO2 composite coatings which have the interpenetrating organic and inorganic cross-linked network were prepared by repeated freezing-thawing and sol-gel techniques. The structure and characterization of the composite membrane were determined by FTIR, TGA, SEM and gas chromatography. The composite coatings have good thermal stability(Td>300 ℃) and good adherence activity that they are difficult shedding from coated glass or quartz fiber surface by chemical bonds. The performance of the coatings was tested by extraction of 1-propanol, 1- butanol, amyl alcohol and toluene. The fiber coatings proved to be selective for polar compounds containing hydroxyl groups. The relative standard deviation(RSD, n=3) was less than 5%.

Key words: Poly(vinyl alcohol), Sol-gel method, Freezing-thawing, Solid-phase microextraction

CLC Number: 

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