Poly (N-isopropylacrylamide) (PNIPAM) is an intelligent hydrogel which exhibits volume transition in response to temperature change. This work reports the PNIPAM/AM-QDs hybrid hydrogels, in which N-isopropylacrylamide, acrylamide as monomers and CdTe/CdS quantum dots (QDs) as filler, are prepared by glow discharge electrolysis plasma (GDEP). The hydrogels are investigated by transmission electron microscopy (TEM), X-ray diffraction (XRD), FTIR spectra, differential scanning calorimetry (DSC) and PL spectra, as well as the swelling rate, temperature sensitivity and fluorescence reversibility. The results show that the PNIPAM hydrogels and QDs are cross-linked by coordination bond, and the QDs are well dispersed and combined firmly in the networks of the hydrogels. The phase transition temperature of PNIPAM/AM-QDs hybrid hydrogels is 32.5°C. The fluorescence intensity of hydrogels is 1490 a.u. and 20 a.u. at 20 and 40°C, respectively. Furthermore, the luminescence intensity of hydrogels is almost not weakened after five heating-cooling cycles, which should be used as a temperature-controlled light switch.

聚（N-异丙基丙烯酰胺）（PNIPAM）是一种智能水凝胶，可响应温度变化而显示出体积转变。这项工作报告了PNIPAM / AM-QDs混合水凝胶，其中通过辉光放电电解等离子体（GDEP）制备了N-异丙基丙烯酰胺，丙烯酰胺作为单体和CdTe / CdS量子点（QDs）作为填充剂。通过透射电子显微镜（TEM），X射线衍射（XRD），FTIR光谱，差示扫描量热法（DSC）和PL光谱以及膨胀率，温度敏感性和荧光可逆性研究了水凝胶。结果表明，PNIPAM水凝胶和量子点通过配位键交联，并且量子点在水凝胶网络中很好地分散和牢固结合。PNIPAM / AM-QDs杂化水凝胶的相变温度为32.5°C。水凝胶的荧光强度在20和40°C下分别为1490 au和20 au。此外，经过五个加热-冷却循环后，水凝胶的发光强度几乎没有减弱，应将其用作温度控制的光开关。