Two diglycidyl ethers which consist of a flexible carbosilane segments and of rigid phenylene moieties (1 and 2) were synthesized and investigated in order to evaluate their heat-curing behavior (epoxy homopolymerization) as well as thermal and mechanical properties of the networked polymers. Differential scanning calorimetry (DSC) analysis revealed that melting points of both diepoxides were -73.9 and -50.7 degrees C, respectively. Networked polymers of 1 and 2 showed glass transition temperature (T-g) s below ambient temperature of 2.2 and 18.7 degrees C, respectively. High thermal stability of cured 1 and 2 were confirmed by thermogravimetric analysis (TGA) (5% weight loss temperature (T-d5) = 369 degrees C for 1 and 351 degrees C for 2). Tensile tests of cured 1 and 2 clarified that their Young's moduli were (9.76 +/- 0.135)(-2) and (1.29 +/- 0.114)(-1) MPa, respectively. (C) 2016 Elsevier Ltd. All rights reserved.