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Environmental Engineering Research 1999;4(2): 127-133.
ENHANCEMENT OF MICROBIAL ADHESION ON THE CHEMICALLY MODIFIED POLYETHYLENE SURFACE
Ho Suk Choi1, Min-Su Shin1, and Jae-Ha Kim2
1School of Chemical Engineering, Chungnam National University, Taejon 305-764, Korea
2Department of Chemical Engineering, KAIST, Taejon, Korea
Corresponding Author: Ho Suk Choi ,
Received: March 18, 1999;  Accepted: June 7, 1999.
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ABSTRACT
The retention capacity of microbes on the polyethylene surface was improved through the modi¬fications of polymer surface Out of six different chemical modifications, the LDPE(low density poly¬ethylene) samples treated by chlorosulfonic acid only and by chlorosulfonic acid + PEl(polyethylene imine) show most high retention capacities. The LLDPE(linear low density polyethylene) sample treated by chlorosulfonic acid + PE1 also shows good retention capacity of microbes. The surface analyses from ATR-FTIR and ESCA support that the sulfonyl group formed by chlorosulfonic acid treatment and the amide group formed by PEI treatment enhance the adhesion of microbes on the polymer surface.
Keywords: microbial adhesion | polyethylene | biocarrier | surface modification | chemical etching
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