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Citation: ZHOU Junhui, WU Qi, LIU Hewen. Preparation of 1, 2, 3-Triazole-Functionalized Polystyrene Diblock Copolymer and Its Adsorption toward Proteins[J]. Chinese Journal of Applied Chemistry, ;2012, 29(5): 515-519. doi: 10.3724/SP.J.1095.2012.00201 shu

Preparation of 1, 2, 3-Triazole-Functionalized Polystyrene Diblock Copolymer and Its Adsorption toward Proteins

1.
CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China

Corresponding author: LIU Hewen,
Received Date: 12 May 2011
Available Online: 28 November 2011
Fund Project: 国家自然科学基金重大项目(21090354)资助 (21090354)

(1-(4-Vinylbenzyl)-1H-1,2,3-triazol-4-yl)methanol(VBTM) monomer was synthesized via click chemistry and RAFT polymerization method was utilized to achieve 1,2,3-triazole-functionalized diblock copolymer(PS-b-PVBTM).The diblock copolymer was spin-coated on gold substrate to form a thin film consisted of nano-spherical structures with enriched PS as core and PVBTM as corona.After being annealed at 90℃ for 24 h,the spherical structure was changed to donut-like nano-structure with PS enriched on the surface.Adsorption of proteins on the spin-coated thin film was studied by surface plasma reasonance.The film could absorb bovine serum albumin(BSA) in an acid buffer solution and the absorption capacity was increased as pH decreased while it did not adsorb BSA and myoglobin in a neutral buffer solution.The film adsorbed lysozyme with a pI of 11.0,and the adsorption capacity was weakened by 0.26 ng/mm² after being annealed.The electrostatic interaction was supposed to be the governing role of adsorption.
- protein adsorption,
- diblock copolymers,
- morphology
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