Anhydride-cured epoxy resins toughened with diol- and bis(4-hydroxybenzoate)-terminated poly(tetrahydrofuran) liquid rubbers. Part II. Phase separation

✍ Scribed by J. Läuger; P. Albert; J. Kressler; W. Gronski; R. Mülhaupt

• Publisher: John Wiley and Sons
• Year: 1995
• Tongue: English
• Weight: 525 KB
• Volume: 46
• Category: Article
• ISSN: 0323-7648
• DOI: 10.1002/actp.1995.010460111

✦ Synopsis

The structure formation via spinodal decomposition is monitored by transmission electron microscopy (TEM) and small angle light scattering (SALS) using hexahydrophthalic anhydride cured bisphenol A diglycidyl ether mixed with bis(4hydroxybenzoate)-terminated poly(tetrahydr0furan) segmented poly(hydr0xyether). The poly(tetrahydr0furan) (PTHF) segment has a number average molecular weight of 4500 g/mol. There is good agreement between the particle-particle spacing obtained from the maximum of SALS traces and the digital image analysis of TEM micrographs. Time-resolved SALS measurements are used to study the phase separation kinetics in the epoxy/diol-terminated PTHF system.