Gas Permeable Mixed Matrix Membranes Composed of a Polymer of Intrinsic Microporosity (PIM-1) and Surface-modified Pearl-necklace Silica Nanoparticles: Effect of Expansion of Nano-space on Gas Permeability

被引：4

作者：

Mikami, Hiroto ^{[1
]}

Higashi, Shiori ^{[1
]}

Muramoto, Takuya ^{[1
]}

Tanaka, Manabu ^{[1
]}

Yamato, Masafumi ^{[1
]}

Kawakami, Hiroyoshi ^{[1
]}

机构：

[1] Tokyo Metropolitan Univ, Grad Sch Urban Environm Sci, Dept Appl Chem, 1-1 Minamiohsawa, Hachioji, Tokyo 1920397, Japan

来源：

JOURNAL OF PHOTOPOLYMER SCIENCE AND TECHNOLOGY | 2020年 / 33卷 / 03期

关键词：

Mixed matrix membrane; Surface modification; Silica particle; PIM-1; Gas; permeability; Xe NMR; SEPARATION; CHALLENGES;

D O I：

10.2494/photopolymer.33.313

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Gas permeable mixed matrix membranes (MMMs) based on a polymer of intrinsic microporosity (PIM-1) was studied focusing on the effect of the expansion of nano-space formed by surface modification on non-porous silica nanoparticles on gas permeability. The silica nanoparticles modified with different generations dendritic moieties were successfully synthesized and characterized by FT-IR and TGA measurements. The CO2 permeability of the MMMs significantly increased with an increase of loading of the particles and addition of the particles with high modification ratio was more effective in improving gas permeability. The expansion of nano-space formed by the surface modification on silica nanoparticles would improve gas diffusion coefficient in MMMs. This was supported by the correlation between the diffusion coefficient in the MMMs and the peaks observed by Xe-129 NMR spectroscopy.

引用

页码：313 / 320

页数：8

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