series of cardo polyaryletlierketones containing alkyl substituents of diffrent kind and number were synthesized by "one-step" solution polycondensation reaction of his (4-nitrophenyl) ketone(DNBP) with phenolphthalein
o-cresophthalein
2'
5'
2"
5"-tetramethylphenolphthalein and thymolphthalein. Their chemical structure and aggregation structure were confirmed by FT-IR
1H-NMR
differential scanning calorimetry
WAXD and density. The experimental result showed that polymeric free volume and segment flexibility varied greatly with position
SYNTHESIS AND CHARACTERIZATION OF LIQUID CRYSTALLINE COPOLYESTERS WITH X-SHAPED TWO-DIMENSIONAL MESOGENIC UNITS AND CROWN ETHER CYCLE OF cis-4,4′-BIS(4-HYDROXY PHENYLAZO)DIBENZO-18-CROWN-6
SYNTHESIS AND CHARACTERIZATION OF POLYBENZO-BISOXAZOLES CONTAINING SOFT SEGMENTS
STUDIES ON THE RELATIONSHIP BETWEEN SOUND ABSORPTION AND MOLECULAR STRUCTURE OF POLYMERS
EFFECT OF ULTRAFINE VULCANIZED POWDERED NITRILE RUBBER ON THE PROPERTIES OF PVC
SYNTHESIS AND CHARACTERIZATION OF TRIFLUROMETHYL-CONTAINING POLYIMIDES