The solution-prepared blends of thermotrotropic Liquid crystal copolyester (HTH10) and Nylon-1010 have been investigated by using PLM

DSC and WAXD. It was found that cross polarized micrographs of the blends are as same as the micrographs of HTH10 when the content of HTH10 was over 30%.The crystallinity of Nylon-1010 increased first and then decreased with the increse of HTH10 composition

but the crystallization temperature of Nylon-1010 decreased monotonically. There was a marked derivation of △ Hm from the calculated values when the HTH10 content reached to 30% The results of wide angle X-ray diffraction on the blends demonstrated that the structure of Nylon-1010 was influ-enced significantly at the weight rate of 30/70 for the HTH10 and Nylon-1010 blends.