Details

Autor(en) / Beteiligte

• Tasdelen, Mehmet Atilla
• Beyazit, Selim
• Gunes, Deniz
• Bicak, Niyazi
• Tatar, Pinar
• Demirel, A. Levent
• Yagci, Yusuf

Titel

Poly(p-phenylene methylene)-based block copolymers by mechanistic transformation

Ist Teil von

• Journal of polymer science. Part A, Polymer chemistry, 2011-09, Vol.49 (18), p.4021-4026

Ort / Verlag

Hoboken: Wiley Subscription Services, Inc., A Wiley Company

Erscheinungsjahr

2011

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The synthesis of poly(p‐phenylene methylene) (PPM)‐based block copolymers such as poly(p‐phenylene methylene)‐b‐poly(ε‐caprolactone) and poly(p‐phenylene methylene)‐b‐polytetrahydrofuran by mechanistic transformation was described. First, precursor PPM was synthesized by acid‐catalyzed polymerization of tribenzylborate at 16 °C. Then, this polymer was used as macroinitiators in either ring‐opening polymerization of ε‐caprolactone or cationic ring‐opening polymerization of tetrahydrofuran to yield respective block copolymers. The structures of the prepolymer and block copolymers were characterized by GPC and 1H NMR investigations. The composition of block copolymers as determined by 1H NMR and TGA analysis was found to be in very good agreement. The thermal behavior and surface morphology of the copolymers were also investigated, respectively, by differential scanning calorimetry and atomic force microscopy measurements, and the contribution of the major soft segment has been observed. © 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2011 A new synthetic route for the synthesis of poly(p‐phenylene methylene)‐based block copolymers by mechanistic transformation was reported. In this method, first poly(p‐phenylene methylene) was synthesized by acid‐catalyzed polymerization of tribenzylborate at room temperature. Then, this polymer was used as macroinitiator either in the ring‐opening polymerization of ε‐caprolactone or cationic ring‐opening polymerization of tetrahydrofuran. The structures and properties of the prepolymer and block copolymers were characterized by GPC, 1H NMR, DSC, TGA, and AFM investigations.