Influence of the structures of some monomeric nitroepoxides [CH2 - CH- CH2 - R]

R=H (Ⅰ)

NO2 (Ⅱ)

NO2 (Ⅲ)

- OCH2CH2NO2 (Ⅳ)

- OCH2CH2NO2 (V) on the reactivity in cationic polymerization and the properties of polymers has been studied. In the presence of boron trifluoride etherate-1

4-butanediol as a catalyst system

the reactivity of polymerization of these monomers has been found in following sequence : (Ⅰ)>(Ⅳ)≥(Ⅴ)≥(Ⅲ)≥(Ⅱ). Some properties of the polymers and the copolymers with tetrahydrofuran

such as heat stability

chemical stability

glass transition tem-perature

tensile strength and elasticity of the crosslinking plymers have also been investigated.