Effective Dispersion of Fullerene with Methacrylate Copolymer in Organic Solvent and Poly(methyl methacrylate)
Effective Dispersion of Fullerene with Methacrylate Copolymer in Organic Solvent and Poly(methyl methacrylate)
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富勒烯与甲基丙烯酸酯共聚物在有机溶剂和聚甲基丙烯酸甲酯中的有效分散
DOI：
10.1007/s00396-012-2707-x
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发表时间：
2012
影响因子：
2.4
通讯作者：
A.Nakai
中科院分区：
文献类型：
--
作者：
K.Yoshinaga;S.Motokucho;K.Kojio;A.Nakai
研究了通过在甲基丙烯酸甲酯 (MMA) 中添加聚甲基丙烯酸酯分散剂以及将 C60 掺入聚甲基丙烯酸甲酯 (PMMA) 中富勒烯 C60 的分散情况。通过 MMA 和甲基丙烯酸 2-萘酯 (NMA) 自由基共聚合成的共聚物，聚（MMA-co-NMA），可有效地将 C60 分散在 MMA 中，形成 20 nm 的簇。在这些情况下，每单位 C60 分子添加最少 110 个萘基可以得到最小尺寸为 20 nm 的簇。此外，MMA/NMA摩尔比为12:1至20:1的嵌段共聚物聚(MMA-b-NMA)也可以有效地分散C60，通过在每个C60分子中添加最少40个萘基，形成20 nm大小的簇，这相当于吸附在簇表面上的嵌段共聚物中大约九层萘基。通过浇铸含有 PMMA 的 C60 分散溶液制备的 C60/PMMA 混合膜，在 400 nm 处的吸光度随 C60 含量呈线性增加。
Dispersion of fullerene, C60, by addition of polymethacrylate dispersant in methyl methacrylate (MMA) and incorporation of C60into poly(methyl methacrylate) (PMMA) were investigated. Copolymers synthesized by radical copolymerization of MMA and 2-naphthyl methacrylate (NMA), poly(MMA-co-NMA), effectively dispersed C60in MMA to form clusters of 20 nm. In these cases, addition of minimal 110 naphthyl groups per unit C60molecule afforded to give clusters with minimum of 20 nm sizes. Furthermore, block copolymers, poly(MMA-b-NMA) with MMA/NMA mole ratio from 12:1 to 20:1, also efficiently dispersed C60to give formation of clusters of 20 nm size by addition of minimal 40 naphthyl groups per unit C60molecule, which was corresponding to approximate nine layers of naphthyl group in block copolymer adsorbed on the surface of the cluster. Hybrid films of C60/PMMA, prepared by casting of C60-dispersed solution containing PMMA, exhibited absorbance at 400 nm linearly increased with C60content.