Homogeneous catalysis in the preparation of new carboximide-based thermoplastic polymers
Yükleniyor...
Tarih
2010
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Bv
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The ring opening metathesis polymerization (ROMP) of norbornene dicarboximide derivatives 3(a-c) bearing halo-substituted phenyl groups was carried out with well-defined organometallic catalyst (PCy(3))(2)(Cl)(2)Ru=CHPh. This catalyst is highly active for the polymerization of norbornene dicarboximide derivatives. Exo-N-4-chlorophenyl-norbornene-5,6-dicarboximide (ClPhNDI, 3a), exo-N-4-bromophenyl-norbornene-5,6-dicarboximide (BrPhNDI, 3b), exo-N-4-iodophenyl-norbornene-5,6-dicarboximide (IPhNDI, 3c) monomers gave high molecular weight thermoplastic polymers in high yields (77-96%). All of the prepared polymers were soluble in common organic solvents at room temperature and gave similar IR and NMR spectra. Their glass transition temperatures were detected at temperatures over 187 degrees C. The surface properties of ROMP polymers were investigated by SEM. (C) 2010 Elsevier B.V. All rights reserved.
Açıklama
Anahtar Kelimeler
Organometallic catalyst, Ruthenium alkylidene, Polynorbornene dicarboximide, Metathesis, ROMP
Kaynak
Applied Catalysis A-General
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
382
Sayı
1
Künye
closedAccess
