ISSN:
1436-2449
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Summary The synthesis and thermotropic behavior are reported for a series of polyesters, 1, and its model compounds, 2, which bear a N-arylazomethine pendant group with para-substituents in order to evaluate electronic and steric effects on mesophase stability of segmented LCP with Y-shaped mesogens. Substituent effects on these polymer series and model compound series are dominated by steric effects. The results suggest that due to the conformational flexibility of the azomethine group this type of macromolecules cannot be strictly considered as Y-shaped segmented liquid crystal polymers. It was also concluded that when steric effects are predominant the mesomorphic behavior of model compounds can be used to estimate polymer nematic mesomorphic properties.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s002890070053
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