Poly(norbornene imide)s: synthesis and simulations

The contribution reports on the vinylic polymerisation of exo N-o/m/p tolyl (Io/Im/Ip)-nadimides using a Pd(II) catalyst, on computer simulations on t he chain conformation and dynamics as well as on the structure and glass tr ansition in the condensed start. The poly(norbornene imide)s are densely co iled yet highly rigid chain molecules. The energy barriers are sufficiently high to prevent rotational motions fur temperatures up to 380 degrees C. T his rigidity causes the formation of a glassy state; and a glass transition temperature of as high as 330 degrees C.