Liquid crystalline poly(1-alkynes) with different functional bridges and lengths of alkyl spacer {-[HC=C(CH2)30 -Biph-OCO(CH2)(10)CH3](n)-[1(3); Biph=4,4'-biphenyl] and -[HC=C(CH2)(m)OCO-Biph-OCO(CH2)(10)CH3](m)-[2(m); m=3,4]} are synthesized in high yields (up to 84%) by WCl6-Ph4Sn catalyst in dioxane at 60degreesC. Polymer 1(3) shows atypical SmA texture. Focal-conic textures of SmA phase are, however, observed in 2(m). Whereas 1(3) emits weakly at 367 nm, intense blue emissions (lambda(max)similar to350 nm) are observed in 2(m), whose intensity increases with the spacer length.