A molecular rotor compound containing an allyl group (aMR) was synthesized and copolymerized with the vinyl monomers methyl methacrylate (MMA), styrene (St), and 2-hydroxyethyl methacrylate (HEMA). The absorption and fluorescence (FL) emission maxima of the solution of aMR in THF were observed at 445 and 485 nm, respectively. The FL quantum yield (FLQY) of aMR in THF was quite low (0.21%). However, it was found that the FL intensity significantly increased as the viscosity of the fluid increased. This change was expressed using the Förster-Hoffmann equation, log I = C + x log η, where I and η are the FL intensity of the probe and the viscosity of the fluid, respectively. The value of x was determined to be 0.66 and 0.53 for the methanol/ethylene glycol mixtures and alcohols, respectively. The absorption and FL emission spectra of the aMR-incorporated vinyl polymers were almost similar to those of aMR. The FLQYs of P(MMA-co-aMR), P(St-co-aMR), P(HEMA-co-MMA-co-aMR) films were 4.9, 4.3, and 5.1%, respectively. These FLQYs are ∼10 times of the values obtained with their solutions. As soon as the polymer film came into contact with the fluids, its FL emission started to decrease and reached an equilibrium state after a few minutes. It was found that the equilibrium FL emission became weaker as the viscosity of fluid decreased. The FL intensity ratio was also expressed using the modified Förster-Hoffmann equation. The x values of P(MMA-co-aMR) for alcohols and methanol/ethylene glycol mixtures, P(St-co-aMR) for hydrocarbons, and P(HEMA-co-MMA-co-aMR) for the methanol/ethylene glycol mixtures were 0.26, 0.24, 0.29, and 0.53 respectively.

合成了含有烯丙基的分子转子化合物（aMR），并将其与乙烯基单体甲基丙烯酸甲酯（MMA），苯乙烯（St）和甲基丙烯酸2-羟乙酯（HEMA）共聚。分别在445和485 nm处观察到aMR溶液在THF中的吸收和荧光（FL）发射最大值。aMR在THF中的FL量子产率（FLQY）相当低（0.21％）。然而，发现随着流体粘度的增加，FL强度显着增加。这种变化是使用福斯特-霍夫曼式表示，登录我 = C ^  +  X日志η，其中我和η分别是探头的FL强度和流体的粘度。对于甲醇/乙二醇混合物和醇，x的值分别确定为0.66和0.53。掺有aMR的乙烯基聚合物的吸收光谱和FL发射光谱几乎与aMR相似。P（MMA- co -aMR），P（St- co -aMR），P（HEMA- co -MMA- co-aMR）膜分别为4.9％，4.3％和5.1％。这些FLQY是其解获得的值的约10倍。聚合物薄膜与流体接触后，其FL发射立即开始减少并在几分钟后达到平衡状态。发现随着流体粘度的降低，平衡FL的发射变弱。FL强度比也用修正的Förster-Hoffmann方程表示。的X P的值（MMA- CO -aMR）为醇类和甲醇/乙二醇的混合物中，P（步步骤骤共-aMR）为烃类，和P（HEMA-共-MMA-共为甲醇/碳酸亚-aMR）乙二醇混合物分别为0.26、0.24、0.29和0.53。