Conjugated polymer nanoparticles by Suzuki-Miyaura cross-coupling reactions in an emulsion at room temperature
Conjugated polymer nanoparticles by Suzuki-Miyaura cross-coupling reactions in an emulsion at room temperature
复制标题
DOI：
10.1021/ma501402h
复制
发表时间：
2014-09
期刊：
影响因子：
5.5
通讯作者：
D. Muenmart;A. Foster;A. Harvey;Ming‐Tsz Chen;O. Navarro;V. Promarak;M. Mccairn;Jonathan M. Behrendt;M. Turner
中科院分区：
文献类型：
--
作者：
D. Muenmart;A. Foster;A. Harvey;Ming‐Tsz Chen;O. Navarro;V. Promarak;M. Mccairn;Jonathan M. Behrendt;M. Turner
通过9，9-二辛基芴-2，7-二硼酸双（1，3-丙二醇）酯与许多不同的二溴芳烃单体在二甲苯中的Suzuki−Miyaura交叉偶联反应合成了一系列球形和棒状共轭聚合物纳米颗粒（CPN）的稳定乳液，并通过非离子表面活性剂Triton X-102在水中稳定。高摩尔质量聚（9，9-二辛基芴）（PF 8），聚（9，9-二辛基芴-alt-苯并噻二唑）（PF 8BT），聚（9，9-二辛基芴-alt-4-仲丁基苯基二苯胺）（PF 8 TAA）和聚在高的总共轭聚合物浓度下，获得（9，9-二辛基芴-alt-联噻吩）（PF 8 T2）乳液在钯络合物、（IPr*）PdCl 2（TEA）和碱、四乙基氢氧化铵的存在下，在氮气氛中在30 °C下在24-48小时后，将反应混合物（高达11，000 ppm）在室温下搅拌24-48小时。PF 8和PF 8 T2乳液的TEM分析揭示了规则的棒状结构，长度可达200 nm，纵横比为4-5。PF 8BT和PF 8 TAA形成球形颗粒，直径在20- 100 μ m之间。
A range of stable emulsions of spherical and rod-like conjugated polymer nanoparticles (CPN) were synthesized via Suzuki−Miyaura cross-coupling reactions of 9,9-dioctylfluorene-2,7-diboronic acid bis(1,3-propanediol) ester with a number of different dibromoarene monomers in xylene, stabilized in water by the nonionic surfactant, Triton X-102. High molar mass poly(9,9-dioctylfluorene) (PF8), poly(9,9-dioctylfluorene-alt-benzothiadiazole) (PF8BT), poly(9,9-dioctylfluorene-alt-4-sec-butylphenyldiphenylamine) (PF8TAA) and poly(9,9-dioctylfluorene-alt-bithiophene) (PF8T2) emulsions were obtained, at high overall conjugated polymer concentrations (up to 11,000 ppm), in the presence of the palladium complex, (IPr*)PdCl2(TEA) and base, tetraethylammonium hydroxide, in nitrogen atmosphere at 30 °C after 24–48 h. TEM analysis of the PF8 and PF8T2 emulsions revealed regular rod-like structures, up to 200 nm in length with aspect ratios of 4–5. PF8BT and PF8TAA formed spherical particles with diameters of between 20–...