Abstract : the photografting polymerization of n - vinyl pyrrolidone ( nvp ) on the surface of ldpe film with photo grafting method was studied and ldpe - g - nvp was chara cterized by ftir qualitatively 文摘:采用一步法和二步法研究了聚乙烯薄膜表面的n -乙烯基吡咯烷酮光接枝反应,并用傅立叶变换红外光谱仪定性表征了反应结果。