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Can I read Understanding Hydrogen Solubility and Free Volume Characteristics in Charge-transfer Phthalonitrile Prepolymer and Polyimide Blend Membranes on EtoBox?
Understanding Hydrogen Solubility and Free Volume Characteristics in Charge-transfer Phthalonitrile Prepolymer and Polyimide Blend Membranes by Chun-Po Hu; Jacob Song Kiat Lim; Kuo-Hsiang Ping; Wei-Song Hung; Yen Nan Liang; Xiao Matthew Hu is a Engineering article available to read on EtoBox.
What is Understanding Hydrogen Solubility and Free Volume Characteristics in Charge-transfer Phthalonitrile Prepolymer and Polyimide Blend Membranes about?
The increasing demand for hydrogen production has necessitated the development of H 2 -selective membranes. Polyimides are excellent membrane materials for gas separation; however, commercial polyimides generally lack sufficient H 2 selectivity due to their low H 2 affinity. Understanding the relationship between gas transport properties and free volume microstructure is critical to advancing H 2 -selective membrane design. Herein, we report a facile material strategy to adjust the free volume characteristics and H 2 separation performance via blending Matrimid (PI) and crosslinkable resorcinol-based phthalonitrile prepolymer (RPN) with electron donor/ acceptor properties. The novel RPN30/PI70 membrane exhibits H 2 /N 2 and H 2 /CO 2 permselectivity of 1637 and 66.4, respectively, with H 2 permeability of 2.7 Barrer in pure gas test, surpassing Robeson upper bounds (2008). The increased H 2 permselectivity of RPN/PI membranes was attributed to the narrowed free volume size and distribution, giving rise to the considerably improved H 2 solubility and selectivity of the blends. Moreover, the H 2 permeability of crosslinked RPN30/PI70 membranes can be further improved via thermal trea
Who reads Understanding Hydrogen Solubility and Free Volume Characteristics in Charge-transfer Phthalonitrile Prepolymer and Polyimide Blend Membranes?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Chun-Po Hu; Jacob Song Kiat Lim; Kuo-Hsiang Ping; Wei-Song Hung; Yen Nan Liang; Xiao Matthew Hu
- Publisher
- Elsevier BV
- Published
- 2023
- Language
- EN
- Field
- Engineering (Physical Sciences)