User:Moira M. Esson/Notebook/CHEM-581/2012/10/26: Difference between revisions
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| align="center" style="background:#f0f0f0;"|'''Amount of 0.2M sodium bicarbonate used(mL)''' | | align="center" style="background:#f0f0f0;"|'''Amount of 0.2M sodium bicarbonate used(mL)''' | ||
| align="center" style="background:#f0f0f0;"|'''Amount sodium bicarbonate solution saved(mL)''' | | align="center" style="background:#f0f0f0;"|'''Amount sodium bicarbonate solution saved(mL)''' | ||
| align="center" style="background:#f0f0f0;"|'''Mass of film after crosslinking(g)''' | |||
|- | |- | ||
| PVOH(22K) 1.0073g+1.0mL GA+1mL porphyrin||99.95||13||100||14||100||12 | | PVOH(22K) 1.0073g+1.0mL GA+1mL porphyrin||99.95||13||100||14||100||12||1.4974 | ||
|- | |- | ||
| PVOH(22K) 1.05225g+1.0mL GA+1mL porphyrin||101||12||98||13||99.8||12 | | PVOH(22K) 1.05225g+1.0mL GA+1mL porphyrin||101||12||98||13||99.8||12||1.9251 | ||
|} | |} | ||
*For the films listed below, the films were placed in a 6M | *For the films listed below, the films were placed in a 6M NaCl solution at 70°C for ~1.5 hours | ||
'''Crosslinked Films''': | |||
#PVOH(22K) 1.02114g+0.5mL GA+1mL porphyrin+HCl | |||
#PVOH(22K) 1.0067g+1mL GA+1mL porphyrin+HCl | |||
<br> | |||
'''Crosslinking information''': | |||
{| {{table}} | |||
| align="center" style="background:#f0f0f0;"|'''Films crosslinked''' | |||
| align="center" style="background:#f0f0f0;"|'''Amount of NaCl added(g)''' | |||
| align="center" style="background:#f0f0f0;"|'''Amount 6M NaCl solution used(mL)''' | |||
| align="center" style="background:#f0f0f0;"|'''Amount NaCl solution saved(mL)''' | |||
| align="center" style="background:#f0f0f0;"|'''Mass of film after crosslinking(g)''' | |||
|- | |||
| PVOH(22K) 1.02114g+0.5mL GA+1mL porphyrin+HCl||0.3576||100||12||1.7781 | |||
|- | |||
| PVOH(22K) 1.0067g+1mL GA+1mL porphyrin+HCl||0.363||99||12||1.5672 | |||
|} | |||
==Observations for crosslinking films== | |||
*PVOH(22K) 1.02114g+0.5mL GA+1mL porphyrin+HCl was shrunken, shriveled and was green in color before crosslinking | |||
*PVOH(22K) 1.0067g+1mL GA+1mL porphyrin+HCl shrunk, looked shriveled and was green in color before crosslinking | |||
*PVOH(22K) 1.0073g+1.0mL GA+1mL porphyrin was flat, relatively shiny and pink in color before crosslinking | |||
*PVOH(22K) 1.05225g+1.0mL GA+1mL porphyrin was flat, shiny and pink in color before crosslinking | |||
*When added film to fixant solution both beakers of solution had some color leak out. Color of both beakers were yellowish/greenish. Film with 1mL GA not as colored. Film with 0.5mL GA seems to be a more vibrant color(leaking more) | |||
*NaCl solution with film with 0.5mL GA had very slight leaking(slight discoloration of solution very light green). Coloration of solution was occurring very gradually | |||
*Both films after fixant solution were a vibrant green color(like jolly rancher green). Film with 1.0mL GA was a darker/ more vibrant green | |||
*Films placed in 1% aqueous HCl soltn. both started to have color leak out | |||
*1.0mL GA+HCl film when placed in the 6M NaCl solution leaked very minimally(solution looks very faintly green). Much less in comparison to 0.5mL GA. | |||
*0.5mL GA+HCl film after 1hr. and 15min. heated , remained bright green color. Stored in H<sub>2</sub>O. After adding H<sub>2</sub>O, film turned into a pink color(darker pink on edges) | |||
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Revision as of 15:42, 10 November 2012
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Objectives
Crosslinking
Crosslinked Films:
Observations for crosslinking films
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