Preparation and Evaluation of Poly(N-isopropylacrylamide-co-hexanediol diacrylate-co-ethylene dimethacrylate) Monolithic Column and its Applications in the Separation of Small Molecules.

Poly(N-isopropylacrylamide-co-hexanediol diacrylate-co-ethylene dimethacrylate) [poly(NIPAAm-co-HDDA-co-EDMA)] monolithic column was prepared via in situ polymerization reaction. In order to investigate the porous properties of the monoliths prepared, the morphology was characterized by the scanning electron microscopy; the chemical group of the monolithic column was confirmed by a Fourier transform infrared spectroscopy method. The surface area was 39.

Property evaluations and application for separation of small molecules of a nanodiamond-polymer composite monolithic column.

A nanodiamond-polymer composite monolithic column was first prepared successfully with modified nanodiamond (ND) as monomer, ethylene glycol dimethacrylate (EDMA) as cross-linker, 1-dodecanol as porogenic agent and benzoyl peroxide/dimethylacetamide (BPO/DMA) as initiator at 35°C for 2.5h. There was a sharp increase of specific surface area with ND added about 22 times from 0mg (3.