The insertion of an increasing amount of N-vinylpyrrolidone (VP) in statistical copolymers based on thermoresponsive poly(N-vinylcaprolactam) (PVCL) enables one to modulate the properties of the copolymer and those of the corresponding gold nanoparticles (AuNPs)-polymer hybrid materials. The incorporation of VP not only affects the growth of AuNPs synthesized in the presence of the polymers (in situ route), but also the properties (stabilization, optical, catalytic...) of preformed nanoparticles coated by these polymers. Hence, at a molar fraction of VP in copolymer less than 40%, it is possible to increase the transition temperature of the hybrid material and improve its catalytic properties compared to counterparts comprising PVP and PVCL homopolymers. The structural difference of the two monomers allows the best compromise between the hydration level and the interaction strength of the copolymer with the surface of gold particles for a chosen application.

在基于热响应性聚（N-乙烯基己内酰胺）（PVCL）的统计共聚物中插入越来越多的N-乙烯基吡咯烷酮（VP）使人们能够调节共聚物的性质和相应的金纳米粒子（AuNPs）-聚合物杂化物的性质材料。VP 的掺入不仅影响在聚合物存在下合成的 AuNPs 的生长（原位路线），以及由这些聚合物包覆的预制纳米粒子的特性（稳定性、光学、催化...）。因此，与包含 PVP 和PVCL 均聚物的对应物相比，在共聚物中VP 的摩尔分数小于40% 时，可以提高杂化材料的转变温度并改善其催化性能。对于选定的应用，两种单体的结构差异允许在水合水平和共聚物与金颗粒表面的相互作用强度之间实现最佳折衷。