Formation of a liquid-crystalline interpenetrating poly-(ionic liquid) network hydrogel.
- Materials Science Division
Preparation of a liquid-crystalline ionic-liquid (IL)-based interpenetrating polymer network (IPN) is described. The IPN is prepared sequentially by first photopolymerizing a self-assembled aqueous mixture of an IL monomer (1-(10-(acryloyloxy)decyl)-3-methylimidazolium chloride) that possesses an acryloyl moiety at the terminus of a C{sub 10} alkyl chain of the IL cation. In the second step, an acrylate counteranion is introduced and then photopolymerized to yield a durable self-supporting network polymer. Thermal analysis indicates the formation of a homogeneous (well-blended constituent polymers) IPN. The IPN adopts a lamellar structure possessing some residual in-plane tetragonal perforations, as evidenced by small-angle X-ray scattering (SAXS). The IPN can absorb large quantities of water, swelling to nearly 60 times its original volume, but retains mechanical integrity making it a durable hydrogel.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- DE-AC02-06CH11357
- OSTI ID:
- 1011295
- Report Number(s):
- ANL/MSD/JA-68904; TRN: US201109%%146
- Journal Information:
- Macromolecules, Vol. 44, Issue Feb. 21, 2011
- Country of Publication:
- United States
- Language:
- ENGLISH
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