A novel dichioro-monomer 4,4’-bis(N-’phenyl-4-chloro-1,8-naphthalimide) ether(BCNPI) was successfully prepared. We obtain novel polyethernaphthalimide(PENI) from BCNPI and Bisphenol A salt in the present of sulfolane. The polymer possess high molecular weight from test of intrinsic viscosity and high Tg from the differential scanning calorimetry. The polyetherimide exhibited excellent thermal and thermooxidative stabilities,and it has high modulus,strength and elongation from the test of the mechanical properties.
The self-assembly of the linear rod-coil multiblock copolymers is studied by applying self-consistent-field lattice techniques in a three-dimensional (3D) space. Compared to the copolymer with one rod, the copolymer with more rods (mrod≥2) exhibits rich order-order phase transitions with increasing temperature, where the ordered morphology changes from strips to perforated lamellae and finally to lamellae. In addition, taking the copolymer with mrod = 2 as a representative, we further study the effects of the volume fractions of the rods, the spacer coils and the end coils on the phase behaviors respectively, by which the detailed self-assembled mechanism of the linear rod-coil multiblock copolymers is revealed. Our results are expected to provide guidance for the design of the rod-coil materials.
