【正文】
( 3) Thermal properties Ar氣氣氛中 , 200 ℃ 以前主要為吸附水的脫除;根據(jù)失重 百 分 率 計(jì) 算POEM和 PSSA在納米氧化硅表面的接枝量分別為 5%和 8%。 實(shí)驗(yàn)試劑: 粉體二氧化硅 SiO2(平均粒徑 14nm)、鹽酸、 2氯丙酰氯 CPC、三乙胺 TEA、 4二甲氨基吡啶 DMAP、二氯甲烷MC、 POEM、對(duì)苯乙烯磺酸鈉 SSA、 DMSO、 CuCl、1,1,4,7,10,10六甲基三亞乙基四胺 HMTETA Surface modification of silica nanoparticles with hydrophilic polymers Jung Tae Park , Jin Ah Seo, Sung Hoon Ahn Journal of Industrial and Engineering Chemistry 16 (2022) 517–522 Abstract: Silica nanoparticles grafted with a watersoluble polymer, . nonionic POEM and ionic PSSA were prepared via a threestep synthetic approach: (1) the activation of silanol group (OH)in the surface of SiO2 nanoparticles, (2)surface modification to chlorine group (C