Ethylene Oxide - -Phenylene Vinylene

Poly-p-phenylene vinylene and its derivatives are electrically conducting polymers. Yang and co-workers [223] studied microstructure and sequencing in phenylene vinylene - ethylene oxide and methylene - ethylene oxidecopolymers  

In the IR spectra of these copolymers, the band at 1682-1695 cm, which was assigned to the C=0 stretching vibration in the dialdehydes, is no longer present, but a new band at 957-959 cm has emerged. This new band is attributed to the out-of-plane bending vibration of the trans -CH=CH- moieties, which are formed from the C=0. It is noteworthy that the copolymers contain polyvinylene units which are only 2.5 units long. Sequencing studies have also been conducted on polyethylene oxide -1,2-butylene [224] and ethylene oxide - epichlorohydrin copolymers. 

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H. Wang, L. Duan, Y. Qui, X. Wang, and D. Liu, Synthesis and electroluminescence properties of a novel poly(p-phenylene vinylene)-based copolymer with tri(ethylene oxide) segments on the backbone, J. Appl. Polym. Sci., 83 2195-2200, 2002. 

Miscellaneous Polymers - In the photooxidation of melamine clear coats oxidation of the melamine ether link is the prime site for attack while in poly(phenylene vinylene) singlet oxygen is an important intermediate in the hydroperoxidation reactions. The products of photolysis of poly(p-xylylene) have been measured by mass spectrometry " and the yellowness of polycarbonate assessed. Cu(II) complexes with poly(ethylene oxide) behave as accelerators of photooxidation while 3-alkyl-l,4-pentazadienes undergo reversible... 

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