Fabrication and Characterization of Acid Dyeable Polyacrylonitrile Blend Fiber

Abstract

Poly(N,N-dialkylaminoethylacrylate) (PDA), which contains a basic group, was prepared as a material to blend with poly(acrylonitrile) (PAN). Using the wet spinning method, an acid dyeable PAN/PDA blend fiber was fabricated. It was found that the dye up-take of the blend fiber is increased remarkably, reaching up to 93%. Based on IR, x-ray diffraction, DSC characterization, and mechanical measurements, it was shown that the crystallinity and glass transition temperature (Tg) are changed for the blend fiber, that it has acceptable mechanical properties and can be spun.

Development of an enzyme-linked immunosorbent assay for quantification of estriol in milk

“…Estriol hapten A (E3-A) was synthesised by introduction of spacer arms containing a carboxyl group originated from bromoacetic acid by substitution of H on the benzene ring's hydroxyl group (Wang, Guo, Li, & Chang, 2002). Estriol hapten B (E3-B) was synthesised by introduction of spacer arms containing a carboxyl group on the carbonyl group of 6ketoestriol.…”