NAOJ GW Elog Logbook 3.2
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MarcEisenmann - 11:16, Monday 17 March 2025 (3964)

mix hydrogel measurement
[Katsuki, Marc, Shalika]
Realigned beam and reinstalled powermeters and polcam.
mixed monomer (YY037:diphenyl+YY044:di-peg-phenyl) v/v=1/1 (ratio of monomer)
file : C:\Users\atama\Dropbox\Cell Birefringence\Measurement data\Fri, Mar 14, 2025 1-56-26 PM.txt
broke at 0.4. replace 160mm with 16mm. was mispelled.
input * C:\Users\atama\Dropbox\Cell Birefringence\Measurement data\Fri, Mar 14, 2025 2-49-38 PM.txt
another material
acrylamide(negative control)
C:\Users\atama\Dropbox\Cell Birefringence\Measurement data\Fri, Mar 14, 2025 2-58-18 PM.txt
seems measurement at 0.32 was actually 0.34N
0.4 N --> 0.42N
0.44 N --> 0.45 N
0.48 was not finished
Is Arylamide same as acrylamide?
I have saved the first material characteristics in
C:\Users\atama\Dropbox\Cell Birefringence\Measurement data\hydrogel\Mix 1
the another one in
C:\Users\atana\Dropbox\Cell Birefringence\Measurement data\hydrogel\Arylamide 2
Since we are measurig Arylamide again, I have renamed the first measurement of Arylamide as 'Arylamide 1'
Edit 1:
Also the modifcations to the measurement are saved in
fixed_Fri, Mar 14, 2025 2-58-18 PM and fixed_Fri, Mar 14, 2025 1-56-26 PM
I have attached picture of the characteristics obtained of the materials. The figures are in the following order.
for Mix
Fig 1: Birefringence vs. Stress
Fig 2: Diattenuation vs. Stress
Fig 3 : Rotation vs. Stress
for Arylamide
Fig4 : Birefringence vs. Stress
Fig 5 : Diattenuation vs. Stress
Fig 6 : Rotation vs. Stress
Is Arylamide same as acrylamide? -> yes it is the same, was a typo
Note that for this measurement (and likely all previous ones) the hydrogel is tilted by a non negligeable amount as in Fig.1.
It should have an effect on all measurements (likely adding some offset at 0 force applied)