Abstract
Two new thermotropic liquid crystalline polymers (LCPs) were synthesized. One is a di-mesogenic LCP having a flexible hexamethylene spacer in the main chain, the other is a rigid-type main-chain LCP having alkoxy side groups on the terephthaloyl moiety of the polymer. Blends of LCP with poly(butylene) terephthalate were melt-spun at different LCP contents and different draw ratios to produce a monofilament. Maximum enhancement in the ultimate tensile strength was observed for the blends containing 5% LCP at any draw ratio, and decreased with further increase in LCP content. The initial modulus monotonically increased with increasing LCP content. The tensile properties of the rigid-type LCP blends were higher than those of the flexible main-chain LCP blends. © 1996 John Wiley & Sons, Inc.
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