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Poly( p ‐phenylenes) with well‐defined side chain polymers
Author(s) -
Cianga Ioan,
Hepuzer Yesim,
Yagci Yusuf
Publication year - 2002
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200207)183:1<145::aid-masy145>3.0.co;2-r
Subject(s) - polymer chemistry , cationic polymerization , chemistry , styrene , polymerization , atom transfer radical polymerization , polystyrene , side chain , polymer , materials science , copolymer , organic chemistry
Abstract 1,4‐Dibromo‐2,5‐bis(bromomethyl)benzene and benzene‐2,5‐dibromomethyl‐1,4‐bis(boronic acid propanediol diester) were used as bifunctional initiators in Atom Transfer Radical Polymerization (ATRP) of styrene or in cationic ring opening polymerization (CROP) of tetrahydrofuran in conjunction with CuBr /2,2'‐bipyridine or AgSbF 6 , respectively. The resulting well‐defined macromonomers with low polydispersities, bearing functional groups as bromine or boronic ester were used in Suzuki or Yamamoto type couplings, leading to poly( p ‐phenylene)s (PPPs) with polystyrene (PSt), polytetrahydrofuran (PTHF) or alternating PSt/PTHF side chains. The new polymers were characterized by GPC, 1 H‐NMR, 13 C‐NMR, IR and UV analysis. Thermal behavior of the precursors PSt or PTHF macromonomers and the final polyphenylenes were investigated by TGA and DSC analyses and compared.