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Poly(p-phenylenediethynylene phosphine)s and Related π-Conjugated Phosphine–Diyne Polymers: Synthesis, Characterization and Photophysical Properties
Macromolecules ( IF 5.1 ) Pub Date : 2017-11-07 00:00:00 , DOI: 10.1021/acs.macromol.7b01933
Benjamin W. Rawe 1 , Michael R. Scott 1 , Christopher M. Brown 1 , Harvey K. MacKenzie 1 , Derek P. Gates 1
Affiliation  

Despite the considerable synthetic challenge, polymers that incorporate phosphorus atoms within or adjacent to a π-conjugated backbone framework are of interest due to the ability to modulate the photophysical properties of the polymer based on the chemical environment at phosphorus. We report the synthesis and characterization of poly(p-phenylenediethlynylene phosphine)s, 1a1e, a new class of σ–π conjugated polymer. Polymers 1a1e were prepared by a Ni-catalyzed coupling of dialkynes with phenyldichlorophosphine in the presence of excess triethylamine and have molecular weights (Mw) up to 12,000 g mol–1 (vs. polystyrene). While the polymers 1b1e are nonfluorescent, blue fluorescence is observed upon oxidation of the phosphorus centers (Φsoln = 0.12–0.28). Polymers 1b·O–1e·O also exhibit yellow/green fluorescence in the solid state (Φsolid = 0.04–0.08). These results introduce a fascinating new class of main group-containing macromolecule and lay the groundwork for their utilization in sensory applications and/or their incorporation into optoelectrical devices.

中文翻译:

聚(对苯二亚乙炔基膦)和相关的π共轭膦-二炔聚合物:合成,表征和光物理性质

尽管面临相当大的合成挑战,但由于能够基于磷的化学环境调节聚合物的光物理性质,因此在π共轭骨架骨架内或附近掺入磷原子的聚合物仍然很受关注。我们报告了新型的σ-π共轭聚合物-聚对苯二甲撑次膦1a - 1e的合成与表征。聚合物1a1e是在过量的三乙胺存在下,通过二元酮与苯基二氯膦的镍催化偶合反应制得的,分子量(M w)高达12,000 g mol –1(相对于聚苯乙烯)。而聚合物图1b - 1E是无荧光,蓝色荧光在所述磷中心的氧化观察(Φ SOLN = 0.12-0.28)。聚合物1B ·O- 1E ·O2还表现出在固态黄色/绿色荧光(Φ固体= 0.04-0.08)。这些结果引入了令人着迷的新型的含主基团的大分子,并为它们在感官应用中的应用和/或它们在光电器件中的应用奠定了基础。
更新日期:2017-11-07
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