User:Elizabeth Ghias/Notebook/Experimental Chemistry/2012/08/31: Difference between revisions
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<u>Viscosity Tests (Part 1)</u> | <u>Viscosity Tests (Part 1)</u> | ||
The viscosity of the MW = 130,000 PVA and the MW = 22,000 PVA were measured. | |||
<u>MW = 130,000 PVA</u> | |||
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|<u>% wt/mL</u> | |<u>% wt/mL</u> | ||
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|20 mL | |20 mL | ||
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# Approximately 10 mL of the first solution tested (2% wt/mL) was poured into the viscometer. | |||
# The time it took for the sample to travel between the two lines marked on the viscometer were recorded. | |||
Revision as of 12:31, 7 September 2012
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ObjectiveTo create crosslinked films through acid catalyzed dehydration and to perform viscosity tests.
DescriptionFilm Preparation with Acid Dehydration
Film 1 - 0.5110 g PVA in 3 mL water, no acid was added Film 2 - 0.5053 g PVA in 3 mL water, 2 drops of phosphoric acid was added Film 3 - 0.5078 g PVA in 3 mL water, 2 drops of 12 M hydrochloric acid was added Film 4 - 1.0084 g PVA in 6 mL water, no acid was added Film 5 - 1.0010 g PVA in 6 mL water, 3 drops of phosphoric acid was added Film 6 - 1.0044 g PVA in 6 mL water, 3 drops of 12 M hydrochloric acid was added
The viscosity of the MW = 130,000 PVA and the MW = 22,000 PVA were measured.
Data
NotesThis area is for any observations or conclusions that you would like to note.
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