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Synthesis of two‐end‐functionalized copolymer of styrene and methyl methacrylate via living radical polymerization
Author(s) -
Cai Jie,
Xu Li,
Mao Zhiqing,
Chen Zhijun,
Liu Yun,
Jiang Xiqun,
Cheng Rongshi
Publication year - 2006
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.24045
Subject(s) - copolymer , polymer chemistry , styrene , methyl methacrylate , polymerization , molar mass distribution , monomer , nitroxide mediated radical polymerization , radical polymerization , materials science , end group , living polymerization , chemistry , organic chemistry , polymer
Abstract The random copolymers (HO‐P(St‐ r ‐MMA)‐COOH) of styrene (St) and methyl methacrylate (MMA) with hydroxyl group at one end and carboxyl group at another end were synthesized by nitroxide‐mediated living radical polymerization initiated by 4,4′‐azobis(4‐cyanovaleric acid) (ACVA) and 4‐hydroxyl‐2,2,6,6–tetramethylpiperidineoxyl (TEMPO‐OH). The experimental results have shown that all synthesized copolymers have narrow molecular weight distribution. The conversion of monomers and the molecular weight of copolymer increase with polymerization time. Thus, a copolymerization mechanism containing living radical polymerization is suggested. The use of this method permits the copolymer with two functional chain ends and controllable molecular weight as well as low molecular weight distribution. X‐ray photoelectron spectroscopy result shows that the synthesized copolymers can be tethered on the surface of silicon wafer through the reaction between the hydroxyl end of the copolymer and native oxide layer on the wafer. In addition, an organic/inorganic hybrid surface has achieved by treating copolymer tethered Si‐substrates with SiCl 4 vapor. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 3118–3122, 2006