분야
pptx2.Theories
3.Apparatus & Reagents
4.Procedures
5.Notices & References
Specific gravity-bottle method
Sink-and-float method
Density gradient method
Displacement method
Sink-and-float method
uses heavy, light solvents and a solution that has the same density of our target polymer.
ρ₁ = the density of heavy solvent
ѵ₁ = the volume ratio of heavy solvent
ρ₂ = the density of light solvent
ѵ₂ = the volume ratio of light solvent
5. Pour light solvent and remove all the bubbles. Put a stopper and wipe run over solvent. Then, measure the weight, M2.
[2] http://en.wikipedia.org/wiki/File:Polypropylen.png
[3] http://en.wikipedia.org/wiki/Density
[4] http://www.google.co.kr/search?hl=ko&source=hp&biw=652&bih=472&q=specific+gravity-bottle+method&oq=specific+gravity-bottle+method&aq=f&aqi=&aql=&gs_sm=e&gs_upl=172l8625l0l8844l29l28l1l16l4l0l984l3094l0.1.4.0.2.0.1l8l0
[5] http://www.infoplease.com/ce6/sci/A0861270.html
