树状大分子PAMAM(1G)-FCD的合成及荧光性能

Synthesis and Fluorescent Properties of Dendrimer PAMAM(1G)-FCD

合成了外围由小分子2-芴醛修饰的树状大分子PAMAM(1G)-FCD,用IR,1H NMR,MALDI-TOF-MS等手段表征了其结构,并对其荧光性能及Sn2+对该性能的影响进行了研究,结果表明,Sn2+能使化合物荧光显著增强.紫外光谱表明,随着PAMAM(1G)-FCD溶液中Sn2+浓度的增加,体系在360 nm处出现了新的吸收峰,表明二者之间存在化学反应.故该树状分子有望作为难得的蓝光区荧光材料及金属-树状大分子杂化材料.

A dendrimer of PAMAM （1G）-FCD was synthesized. Its structure was characterized via IR, 1H NMR, MALDI-TOF-MS, etc. The fluorescent properties of PAMAM（1G）-FCD, as well as the influence of Sn^2＋ on this dendrimer, were also studied systematically. The results show that the fluorescence of this den- drimer can be significantly enhanced by S^2＋. The UV spectra detected a new absorption peak at 360 nm with the addition of Sn^2＋ into the solution of PAMAM（1G）-FCD, suggesting that chemical reaction occured in the Sn^2＋ and PAMAM （1G）-FCD system. This hybrid material of metal-dendrirner holds promise as a scarce mate- rial to emit blue fluorescence.