Effect of Hydrogen Bonding on Dynamic Rheological Behavior of PVA Aqueous Solution.

The rheological behavior of polyvinyl alcohol (PVA) aqueous solution is crucial to optimizing the processing technology and performance of PVA products. In this paper, the dynamic rheological behavior of PVA aqueous solution was investigated in detail. PVA solution with a concentration of 10 wt% showed unnormal rheological behaviors, that is, the liquid-like behavior in the high frequency () region and the solid-like behavior in the low region.

[Preparation and characterization of polyclonal antibody against Ia-associated invariant chain of Muscovy Duck (Cairina moschata)].

Objective: To prepare polyclonal antibody against invariant chain of Muscovy duck (Cairina moschata) (MDIi) and identify its reaction with MDIi extracted from tissues of Muscovy duck.

Methods: MDIi was amplified by PCR and used to construct the prokaryotic expression vector of pET-32a/MDIi by linking with the plasmid of pET-32a. Then pET-32a/MDIi was transformed into E.