Effect of Biphenyl Spacers on the Anionic Polymerization of 2-(4′-Vinylbiphenyl-4-yl)pyridine
作者:Nam-Goo Kang、Mohammad Changez、Myung-Jin Kim、Jae-Suk Lee
DOI:10.1021/ma500974m
日期:2014.10.14
pyridine-containing monomer 2-(4′-vinylbiphenyl-4-yl)pyridine (VBPPy), synthesized by the Suzuki coupling reaction, was successfully polymerized using diphenylmethylpotassium (DPM-K) as an initiator within 360 min at −78 °C, resulting in 100% yield and polydispersity <1.3, as with the living anionicpolymerization of 2-vinylpyridine (2VP) and 2-(4-vinylphenyl)pyridine (VPPy). By the block copolymerization of VBPPy
通过铃木偶联反应合成的含吡啶单体2-(4'-乙烯基联苯-4-基)吡啶(VBPPy)在-78°C下以二苯基甲基钾(DPM-K)为引发剂成功聚合,与2-乙烯基吡啶(2VP)和2-(4-乙烯基苯基)吡啶(VPPy)的活性阴离子聚合反应一样,得到100%的收率,多分散度<1.3。通过VBPPy与2VP,VPPy和甲基丙烯酸甲酯(MMA)的嵌段共聚,证明了活性聚(2-(4'-乙烯基联苯-4-基)吡啶)的亲核性介于活性聚(2 -(4-乙烯基苯基)吡啶)和活性聚(甲基丙烯酸甲酯)。在嵌段共聚物中,PVBPPy- b-PMMA用于制备纳米复合材料,其中金(Au)纳米颗粒(NPs)仅存在于相分离的PVBPPy- b -PMMA薄膜(f VBPPy = 0.23)的PVBPPy区域中。
High-performance near-infrared (NIR) polymer light-emitting diodes (PLEDs) based on bipolar Ir(<scp>iii</scp>)-complex-grafted polymers
作者:Wentao Li、Baowen Wang、Tiezheng Miao、Jiaxiang Liu、Guorui Fu、Xingqiang Lü、Weixu Feng、Wai-Yeung Wong
DOI:10.1039/d0tc04377j
日期:——
iridium(III)-complex-doped polymers, the intrinsic phase-separation issue leading to inferior device performance is difficult to address. In this study, taking the vinyl-functionalized [Ir(iqbt)2(vb-ppy)] (Hqibt = 1-(benzo[b]-thiophen-2-yl)-isoquinoline; vb-Hppy = 2-(4′-vinylbiphenyl-4-yl)pyridine) as the polymerized complex monomer, two series of Ir(III)-complex-grafted polymers Poly(NVK-co-[Ir(iqbt)2(vb-ppy)])
Synthesis of vinylphenylpyridine and living anionic polymerization
申请人:Gwangju Institute of Science and Technology
公开号:US08110642B2
公开(公告)日:2012-02-07
Provided are a vinyl-biphenylpyridine monomer and a polymer thereof. More particularly, the present invention provides a vinyl-biphenylpyridine monomer having a side chain of pyridine or phenylpyridine as a functional group, a homopolymer of which molecular weight and molecular weight distribution are controlled using the monomer, and a block copolymer of which molecular structure and molecular weight are controlled to facilitate synthesis of an organic metal complex. Accordingly, the present invention provides a vinyl-biphenylpyridine monomer and a polymer thereof which are effectively used as nano and optical functional materials.