Synthesis of Polydiacetylene Charge-Transfer Complexes
Phelps, D.; Crihfield, A.; Hartwell, J.; Hanks, T. W.; Pennington, W. T.; Bailey, R. D. Synthesis of Polydiacetylene Charge-Transfer Complexes. Mol. Cryst. Liq. Cryst. Sci. Technol. , Sect. A 2000, 354, 523-530.
Like 1,4-bis(3-quinolyl)buta-1,3-diyne, its structural isomer, 1,4-bis(4-isoquinolyl)buta-1,3-diyne, undergoes both photo- and thermal polymerization. Thermal polymerization of each material leads to more amorphous, less thermally stable polymers than are observed in the respective photopolymerization. The diacetylenes are found to react with certain organoiodines to give N-I charge-transfer complexes. Thermolysis of the complexes evolves the organoiodine species prior to polymerization of the diacetylene. The complexes fail to polymerize upon photolysis.
Molecular Crystals and Liquid Crystals Science and Technology, Section A: Molecular Crystals and Liquid Crystals