TY - JOUR
T1 - Thermal and spectroscopic properties of the polydiacetylene derived from Docosa-10,12-diyne-1,22-diylbis(phenylacetate)
AU - Lindsell, W. Edward
AU - Preston, Peter N.
AU - Tomb, Peter J.
PY - 1994/1
Y1 - 1994/1
N2 - Polydiacetylene (2) of varying molecular weight has been formed by UV- or 60Co ?-irradiation of the diacetylene PhCH2CO2(CH2)9-CqqCqqCqqC(CH2)9O2CCH2 Ph (3), with conversions of 30->95%. Samples of (2) with differing physical properties have been studied, in the bulk phase, by CPMAS 13C NMR and VIS/UV spectroscopy and by DSC; complementary spectroscopic data on solutions of (2), including fluorescence studies, are also reported. Spectroscopic studies support the presence of an extended planar conjugated backbone in `as polymerized' blue-black samples of (2), from which various forms of red-coloured polymer, with shorter conjugation lengths, can be obtained. Studies of the thermal behaviour indicate the existence of several differing thermal transitions for these materials and the results are discussed.
AB - Polydiacetylene (2) of varying molecular weight has been formed by UV- or 60Co ?-irradiation of the diacetylene PhCH2CO2(CH2)9-CqqCqqCqqC(CH2)9O2CCH2 Ph (3), with conversions of 30->95%. Samples of (2) with differing physical properties have been studied, in the bulk phase, by CPMAS 13C NMR and VIS/UV spectroscopy and by DSC; complementary spectroscopic data on solutions of (2), including fluorescence studies, are also reported. Spectroscopic studies support the presence of an extended planar conjugated backbone in `as polymerized' blue-black samples of (2), from which various forms of red-coloured polymer, with shorter conjugation lengths, can be obtained. Studies of the thermal behaviour indicate the existence of several differing thermal transitions for these materials and the results are discussed.
UR - http://www.scopus.com/inward/record.url?scp=0028256794&partnerID=8YFLogxK
U2 - 10.1002/pi.1994.210330110
DO - 10.1002/pi.1994.210330110
M3 - Article
SN - 1097-0126
VL - 33
SP - 87
EP - 92
JO - Polymer International
JF - Polymer International
IS - 1
ER -