A Fluorine-contained Copolymer Ultra-thin Film: Preparation, Characterization And Study Of Properties

In this dissertation, a novel fluorine-contained random copolymer P(PFSt-r-4-VBCB) was synthesized. The surface chemical composition, surface morphology and a series of properties of the copolymer ultra-thin films were studied. The main contents are as follows:1. A novel fluorine-contained random copolymer P(PFSt-r-4-VBCB) was synthesized by Nitroxide Mediated Living Radical Polymerizations (NMP).2. P(PFSt-r-4-VBCB) ultra-thin films were produced by spin-coating and cross-linking. The detailed stabilities and electrochemical anti-corrosion behaviors of the films were studied. The results showed this fluorine-contained copolymer film had excellent stability and anti-corrosion property.3. In vitro cytotoxicity tests with MC3T3-E1 osteoblasts of Si wafers coated with P(PFSt-r-4-VBCB) ultra-thin films had been done. The as-fabricated films exhibited desirable cytocompatibility with MC3T3-E1 osteoblasts.4. P(PFSt-r-4-VBCB) ultra-thin films were prepared on aluminum (Al) substrates, then the electrochemical anti-corrosion behaviors of the films were studied. The results showed that Al wafers could be effectively protected by the copolymer films. Meanwhile, this surface modification method with the P(PFSt-r-4-VBCB) films was simple and did not rely on special surface chemical reactions, which could be easily applied on various substrates and had potential applications as protective coatings and biocompatible materials.