Poly(3-hexylthiophene) (P3HT) was prepared by the oxidation coupling polymerization of 3-hexylthiophene (3HT) with molecular oxygen as an oxidant in the presence of vanadyl acetylacetonate (IV) (VO(acac)2) and ferric chloride (FeCl3). The polymerization at a molar ratio of VO(acac)2 / FeCl3 / 3HT = 1 / 2 / 5 in 1,2-dichloroethane at 0 °C for 164 h under oxygen gave P3HT in 61% yield. The resulting polymer gave a number average molecular weight (Mn) of 2.1 × 104 (Mw / Mn = 3.0; Mw: weight average molecular weight) and a head-to-tail content of 65%. The VO(acac)2-FeCl3 complex is supposed to work as a catalyst.
聚(
3-己基噻吩)(P3HT)是由
3-己基噻吩(3HT)在
乙酰丙酮氧钒(IV)(VO(acac)2)和
氯化
铁(FeCl3)存在下,以分子氧为氧化剂,通过氧化偶联聚合反应制备的。 )。在
1,2-二氯乙烷中,0℃,
氧气下,以摩尔比 VO(acac)2 / FeCl3 / 3HT = 1 / 2 / 5 聚合 164 小时,得到 P3HT,收率 61%。所得聚合物的数均分子量(Mn)为2.1×104(Mw/Mn=3.0;Mw:重均分子量),头尾含量为65%。 VO(acac)2-FeCl3 络合物应该起到催化剂的作用。