Effect of different molecular architectured POSS-fluoropolymers on their self-assembled hydrophobic coatings
作者： Xiaoqin Ma , Ling He , Shengying Huang , Youshen Wu , Aizhao Pan
DOI: 10.1007/S00396-020-04739-9
关键词: Adsorption 、 Tetrahydrofuran 、 Thermostability 、 Chemical engineering 、 Silsesquioxane 、 Materials science 、 Methyl methacrylate 、 Methacrylate 、 Atom-transfer radical-polymerization 、 Micelle 、 Physical and Theoretical Chemistry 、 Colloid and Surface Chemistry 、 Materials Chemistry 、 Polymers and Plastics
摘要: A total of 1/2/4/6-armed molecular architectured polyhedral oligomeric silsesquioxane (POSS) fluoropolymers were synthesized via atom transfer radical polymerization (ATRP) by linear (L), dicephalus (D), four-arm (T), and six-arm (S) initiators initiating same content methyl methacrylate (MMA), POSS (MA-POSS), dodecafluoroheptyl (DFHM). The obtained L/D/T/S-(PMMA-b-PMAPOSS-b-PDFHM)1/2/4/6 had increased weight with arm increase. Driven the stereo-hindrance curvature effects segments in tetrahydrofuran (THF), they assembled into decreased spherical core-shell micelles (250–100 nm) increase as PMA-POSS/PDFHM core PMMA shell. Because easy surface migration fluorine-containing groups small micelles, casted film S-(PMMA-b-PMAPOSS-b-PDFHM)6 performed fluorine-rich (46.44%) rough (5.41 nm) surface, therefore hydrophobic (112°) low water adsorption (1522 ng/cm2). Also, POSS-fluoropolymers enhanced thermostability It is believed that this research will provide a bright view for design application POSS-fluoropolymers.
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