Refractive index changes in polyacrylates bearing alkyl sulfur groups through the sulfur oxidation reaction
作者:Jae Young Jang、Jung Yun Do
DOI:10.1016/j.reactfunctpolym.2015.04.005
日期:2015.6
were prepared to examine the changes in refractive index (RI) induced by sulfur oxidation. Linear alkyl sulfides and alicyclic sulfides, such as 1,3-dithiolane and 1,4-dithiane, were introduced to impart large RIs to polyacrylates. Oxidation of the sulfur polymers by O3 and m-chloroperoxybenzoic acid led to the formation of the corresponding sulfoxide and sulfone polymers, respectively. Sulfur oxidation
摘要制备了四种含硫侧链的聚丙烯酸酯,以研究硫氧化引起的折射率(RI)的变化。引入直链烷基硫化物和脂环族硫化物,例如1,3-二硫杂环戊烷和1,4-二硫杂环丁烷,以使聚丙烯酸酯具有较大的RI。O3和间氯过氧苯甲酸氧化硫聚合物会分别形成相应的亚砜和砜聚合物。硫完全发生氧化,其突出之处在于被氧化的聚合物具有与使用砜单体合成的聚合物相当的折射率。线性硫聚合物的RI分别由于亚砜和砜聚合物的形成而增加和降低。具有直链硫化物侧链的聚合物的阿贝数为33.4,