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Non-periodic layer crystallite

Figure 6.36 Non-periodic layer crystallites of poIy(hy-droxynaphthoic acid-stat-hydroxybenzoic acid). HBA is indicated by an unfilled circle and HNA by two shaded circles. Figure 6.36 Non-periodic layer crystallites of poIy(hy-droxynaphthoic acid-stat-hydroxybenzoic acid). HBA is indicated by an unfilled circle and HNA by two shaded circles.
The relaxation behavior of nematic, longitudinal PLCs is greatly complicated by their multiphase character. The presence of both crystallites and a coexisting isotropic component has been reported [32]. Vectra A (poly(p-hydroxybenzoic acid-co-2,6-hydroxynaphthoic acid)), currently one of the more widely used and studied commercial polymers, exhibits, despite that fact that it is a statistical copolymer, a sizeable amount (10-60%) of crystallinity, either of the non-periodic layer type [121] or of a truly statistical type according to the model of Biswas and Blackwell [122]. It has become clear that the relaxation of oriented Vectra is to a substantial degree controlled by the thermal behavior of its tiny crystallites. [Pg.327]

See other pages where Non-periodic layer crystallite is mentioned: [Pg.130]    [Pg.121]    [Pg.185]    [Pg.426]    [Pg.130]    [Pg.121]    [Pg.185]    [Pg.426]    [Pg.118]    [Pg.303]    [Pg.1163]    [Pg.144]    [Pg.304]    [Pg.77]    [Pg.89]    [Pg.75]   
See also in sourсe #XX -- [ Pg.118 , Pg.118 ]



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Layer periodicity

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