Synthesis and Characterization of New Orange-Red Light-Emitting PPV Derivatives with Bulky Cyclohexyl Groups

Bulletin of the Korean chemical society

Hong-Ku Shim¹  Seung Won Ko¹  Byung-Jun Jung¹  Nam Sung Cho¹ 

关键词: Electroluminescence;    Poly(p-phenylenevinylene);    Cyclohexyl;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

A series of 2,5-dialkoxy substituted poly(1,4-phenylenevinylene) derivatives containing a rigid and bulky cyclohexyl group in the side chain, poly[2-(7-cyclohexylheptyloxy)-5-butoxy-1,4-phenylenevinylene] (PBCyHpPV), Poly[2-(6-cyclohexylmethoxyhexyloxy)-5-butoxy-1,4-phenylenevinylene] (PBCyHxPV), Poly[2,5-di-(6-cyclohexylmethoxy-hexyloxy)-1,4-phenylenevinylene] (PDCyHxPV) were synthesized via the Gilch polymerization. The synthesized polymers were soluble in common organic solvents and showed good thermal stability up to 370�?. The maximum absorption of PBCyHpPV, PBCyHxPV and PDCyHxPV as thin films was at 513 К, 515 К, 511 К, respectively. Photoluminescence maximum emission of above polymers appeared at 590 К, 597 К, 590 К, respectively. The electroluminescence (EL) maxima of the polymers appeared around 585-590 К, and also showed another shoulder around 630 К strongly. PDCyHxPV showed the highest EL efficiency and EL power than those of other polymers due to the dilution effect of the two rigid and bulky cyclohexyl groups.

【 授权许可】

Unknown