## Abstract A new series of thermotropic liquidβcrystalline (LC) polyphosphate esters containing phenolphthalein as a part of their mesogen has been synthesized by a solution polycondensation method. The evenβnumbered methylene spacers were varied from 2β10, and ethyl phosphate was used as a phosph
Thermotropic liquid crystalline polyphenylphosphates containing aryl ester mesogens
β Scribed by S. Senthil; N. Poomathi; P. Kannan
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 346 KB
- Volume
- 103
- Category
- Article
- ISSN
- 0021-8995
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Two closely series of poly(ester imide)s had been synthesized by solution polycondensation of p-phenylenebis(trimellitate) dianhydride with aliphatic diamines. The differential scanning calorimetry (DSC) traces of the most poly(ester imide)s exhibited two endotherms representing the solid state to a
Three series of thermotropic liquid crystalline polycarbonates and poly(ester-carbonate)s were prepared by solution polycondensation of 4,4Π-biphenyldiol (BP), 4Π-hydroxybiphenyl-4-hydroxybenzoate (HHB), or 4-hydroxyphenyl-4Π-hydroxybiphenyl-4Π-carboxylate (HHBP), as mesogenic unit, with 1,10-bis(p-