Citation: Lin Tan, Jinxing Xing, Fuhu Cao, Lijuan Chen, Chong Zhang, Ronghua Shi, Yanmei Wang. SYNTHESIS OF DOUBLE-HYDROPHILIC DOUBLE-GRAFTED COPOLYMERS PMA-g-PEG/PDMA AND THEIR PROTEIN-RESISTANT PROPERTIES[J]. Chinese Journal of Polymer Science, ;2013, 31(4): 691-701. doi: 10.1007/s10118-013-1254-3 shu

SYNTHESIS OF DOUBLE-HYDROPHILIC DOUBLE-GRAFTED COPOLYMERS PMA-g-PEG/PDMA AND THEIR PROTEIN-RESISTANT PROPERTIES

Received Date: 11 July 2012
Revised Date: 7 September 2012

Fund Project: This work was financially supported by the National Natural Science Foundation of China (No. 21074124), and Ministry of Science and Technology of China (No. 2012CB933802).

A series of double-hydrophilic double-grafted PMA-g-PEG/PDMA copolymers, which contained poly(methacrylate) (PMA) as backbone, poly(ethylene glycol) (PEG) and poly(N,N-dimethylacrylamide) (PDMA) as side chains synthesized successfully by using reversible addition-fragmentation chain transfer (RAFT) polymerization and atom transfer radical polymerization (ATRP), were used as physical coatings for the evaluation of protein-resistant properties by capillary electrophoresis (CE). Electroosmotic flow (EOF) measurement results showed that the PMA-g-PEG/PDMA copolymer coated capillaries could suppress electroosmotic mobility in a wide pH range (pH = 2.8-9.8) and EOF mobility decreased with the increase of copolymer molecular mass and PDMA content. At the same time, protein recovery, theoretical plate number of separation and repeatability of migration time demonstrated that antifouling efficiency was improved with the increase of molecular mass and PEG content.
- CE,
- EOF,
- PMA-g-PEG/PDMA,
- Protein-resistant property
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