Kinetics of phase separation at the early stage of spinodal decomposition in epoxy resin modified with PEI blends

• Published in: Colloid and polymer science Vol. 287; no. 1; pp. 23 - 28
• Main Authors: Gan, Wenjun, Yu, Yingfeng, Liu, Xiaoyun, Wang, Minghai, Li, Shanjun
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Berlin/Heidelberg : Springer-Verlag 2009; Springer-Verlag; Springer; Springer Nature B.V
• Subjects: Applied sciences; Blends; Cahn-Hilliard-Cook linearized theory; Characterization and Evaluation of Materials; Chemical properties; Chemistry; Chemistry and Materials Science; Colloids; Complex Fluids and Microfluidics; Epoxy resins; Exact sciences and technology; Food Science; Nanotechnology and Microengineering; Original Contribution; PEI/epoxy; Phase separation; Physical Chemistry; Polyetherimides; Polymer blends; Polymer industry, paints, wood; Polymer Sciences; Properties and testing; Soft and Granular Matter; Spinodal decomposition; Technology of polymers; Thermoplastic resins; PEI/epoxy; Cahn–Hilliard–Cook linearized theory; Phase separation; Early phase; Spinodal decomposition; PEI/epoxy, Phase separation; Epoxy resin; Organic anhydride; Curing (plastics); Experimental study; Cahn-Hilliard-Cook linearized theory; Mechanism; Kinetics; Activation energy; Etherimide polymer; Modified material
• ISSN: 0303-402X; 1435-1536
• DOI: 10.1007/s00396-008-1944-5

The behavior at the early stage of spinodal decomposition (SD) for polyetherimide (PEI)/epoxy blends was investigated. It was found that the phase separation of PEI/epoxy blends took place by SD mechanism. The development of molar mass in the epoxy resin was gradual and then the three blends could still be considered as concentrated solutions of thermoplastic. The kinetics at the early stage of phase separation for these blends could be described by the Cahn-Hilliard-Cook linearized theory.