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用微乳液聚合法制备聚 -4 -乙烯吡啶纳米粒子 ,用光子相关光谱仪和粘度法分别测定了聚 -4 -乙烯吡啶粒子的粒径 ,粒径分布和分子量 .结果表明 ,聚 -4 -乙烯吡啶粒子的粒径和分子量随引发剂用量的增加而降低 ,而单体浓度的增加使聚合物的粒子直径变大 .在给定条件下 ,可以得到粒径小于 1 0 0 nm,分子量大于 1 0 5 的聚 -4 -乙烯吡啶纳米粒子 .
Poly (4 - vinylpyridine) nanoparticles were prepared by microemulsion polymerization and the particle size, particle size distribution and molecular weight of poly - 4 - vinylpyridine particles were determined by photon correlation spectroscopy and viscometry respectively. The results showed that poly - 4 - The particle size and molecular weight of pyridine decreased with the increase of initiator concentration, while the increase of monomer concentration led to the increase of polymer particle diameter.Under the given conditions, the particle size was less than 1 000 nm and the molecular weight was greater than 1 0 5 of poly-4-vinyl pyridine nanoparticles.