Interacting Blends of Novel Acrylated Poly(Ester Amide)s Based on DGEBC with Styrene Monomer

Abstract

Bisphthalamic acids were prepared by reaction of phthalic anhydride and aromatic diamines. Novel poly(ester amide) resins (PEAs) were prepared by reaction between diglycidyl ether of bisphenol-C with bisphthalamic acids using a base catalyst. Post reactions of all these PEAs were carried out with acryloyl chloride. The resultant products are designated as acrylated poly(ester amide) resins (APEAs). The PEAs and APEAs were characterized by elemental analysis and number average molecular weight determined by nonaqueous conductometric titration method. IR spectra of PEAs and APEAs were also recorded. Blending of these APEAs with styrene monomer were carried out. The curing of these APEAs-styrene blends was monitored on a differential scanning calorimeter (DSC) by using benzoyl peroxide as a catalyst. Based on DSC data, glass fiber-reinforced composites of APEAs-styrene blends have been fabricated and their chemical, mechanical and electrical properties have been evaluated. Unreinforced cured samples of APEAs-styrene blends were analyzed thermogravimetrically.

Keywords:

• differential scanning calorimeter (DSC)
• epoxy resin (DGEBC)
• interacting blends
• number average molecular weight (Mn)
• polyamide
• polyester
• thermogravimetric analysis (TGA)

The authors are thankful to the Head of the Chemistry Department, for providing research facilities. Bhavdeep K. Patel is thankful to UGC-CEAP for providing a research fellowship.