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Synthesis and structure of elastomeric poly[ester‐ block ‐ether]s
Author(s) -
Fray Miroslawa El,
Slonecki Jerzy
Publication year - 1997
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/masy.19971220152
Subject(s) - differential scanning calorimetry , materials science , condensation polymer , polymer chemistry , dynamic mechanical analysis , transesterification , ether , elastomer , copolymer , polymer , thermoplastic elastomer , thermal analysis , transmission electron microscopy , chemical engineering , composite material , organic chemistry , chemistry , thermal , methanol , physics , meteorology , engineering , thermodynamics , nanotechnology
Different poly[ester‐ block ‐ether] (PEE) elastomers have been prepared in a two‐stage process, namely transesterification followed by polycondensation in the melt. These terpolymers consisted of poly(butylene terephthalate) (PBT), poly(oxytetramethylene) (PTMO) and dimerized fatty acid (DFA). The content of PTMO and DFA blocks was changed at a constant PBT mass ratio of 50. Supermolecular structure of synthesized polymers was investigated using optical microscopy (OM) and transmission electron microscopy (TEM). Thermal and mechanical properties were examined by differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMTA). An influence of dimerized fatty acid on the segment's comiscibility (phase separation) was estimated.