金掺杂PMP泡沫的制备与表征

以聚-4-甲基-1-戊烯(PMP)为泡沫骨架材料,金颗粒为掺杂材料,均四甲苯与萘为混合溶剂体系,通过热诱导倒相技术制备出金掺杂低密度聚合物泡沫。实验结果表明:在金含量不变的情况下,掺杂泡沫的实际密度与理论密度呈线性关系;在理论密度不变的情况下,掺杂泡沫的实际密度随掺杂质量分数的增加趋近于理论值;金实际掺杂质量分数低于理论掺杂质量分数;掺杂泡沫与纯PMP泡沫具有类似的孔洞结构,随掺杂质量分数的增加泡沫的孔洞直径分布变宽且网络骨架尺寸有变大的趋势。

Fabrication and characterization of Au-doped PMP foams

Low-density Au-doped poly(4-methyl-1-petene) (PMP) foams were successfully obtained via thermal induced phase inversion method using PMP as the foam skeleton materials, gold particles as doping materials, and naphthalene and 1,2,4,5-tetramethylbenzene as mixed solvent. The results showed that the actual density is linear with the theoretical density of Au-doped foams as the theoretical Au mass fraction is fixed. The actual Au mass fraction is lower than the theoretical Au mass fraction. Au-doped PMP foams and pure PMP foams are similar in porous morphologies, and the increased Au mass fraction leads to the increased pore size distribution and interconnected skeleton size.