Vectran® LCP fibers

A general structure model developed for highly oriented liquid crystalline fibers [429, 430] is shown schematically in Fig. 5.111. The model was initially defined for the developmental Vectran LCP fibers, but it has been extended by study of the aromatic polyamides and the major features appear to be general in nature. The model extends the structure hierarchy proposed by Dobb, Johnson and Saville [475] for the aramids. Three fibrillar elements have been noted microfibrils < 50 nm in size ... 

Vectran LCP fiber (Fig. 5.153A) and Kevlar (Fig. 5.153B) have a periodic texture of about 50 nm observed across a group of microfibrils, arranged normal to the microfibril axis this texture appears similar in size and spacing to the nonperiodic layer (NPL) crystals observed by Donald and Windle [707]. 

UENO-LCP (Ueno Fine Chem.) VECTRAN (Fiber)(Kuraray)... 

Industrial Thermotropic LCPS. Vectran (Celanese), poly(6-hydroxy-2-naphthoic acid-co-4-hydroxybenzoic acid) [81843-52-9], was the first thermotropic fiber to become commercially available (58). Vectran is S5mthesized by the melt acidolysis of p-acetoxybenzoic acid and 6-acetoxy-2-naphthoic acid. 

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