Abstract
Micrometre-sized porous polymer particles were fabricated by amination of chlorinated aliphatic polymer beads (chlorinated polypropylene (CPP), chlorinated polyethylene (CPE), and polyvinyl chloride co-vinyl acetate (PVCVAc)) in aqueous amine (polyethylenimine (PEI) and triethylamine (TEA)) solution. The polymer particles obtained were characterized by SEM, elemental analysis, titration, N2 adsorption, FT-IR, solid-state NMR and thermogravimetry (TG). CPP–PEI, CPE–PEI, and PVCVAc–PEI had honeycomb-like pores whereas rugged textures with pores were developed in CPP–TEA, and skeleton-like pores were formed in PVCVAc–TEA. Aminated samples exhibit a BET surface area of 4–12 m2 g−1 and an anion exchange capacity of 1.10 to 4.27 mmol g−1. The membranes fabricated with CPP–PEI and PVCVAc–PEI exhibited ionic conductivities as high as 4.5 × 10−2 and 0.48 × 10−2 S cm−1, respectively. As a result, the hydrothermal amination could be an effective way to aminate chlorinated polymers without using organic solvents.
Original language | English |
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Pages (from-to) | 386-389 |
Number of pages | 4 |
Journal | Green Chemistry |
Volume | 8 |
Issue number | 4 |
DOIs | |
Publication status | Published - 2006 |