CAN SOMEONE READ THIS AND HELP ME

MAKE A CONCLUSION AND SUMMARY NOTE FOR THIS PROCEDURE

THINKS

ASAP

Procedure:

The base is added to the source of our cellulose, after about 5 mins of mixing the base will dissolve much quicker when heat is applied. We heated it for about 15 mins more and added acid. Normally stirring is done for about 30 mins or more, but our time was shortened.

Dripping funnel is connected and gently adjusted and acid is traffred by dripping into the solution which took about 4 mins. The reaction started after the acid was added to the mixture. Our Carboxymethyl cellulose did not dissolve in isopropanol but this compound together with the Base (NaOH) is very important for us to achieve our goal. The reaction was left for about 2 hours.

Characteristic Reactions:

Water and filter paper soaked dried, produced a dispensed immiscible solution, this was before the modification of the CMC. The modified cellulose was placed in water, after a few minutes the modified polymer swelled and dissolved.

SPECTROSCOPY ANALYSIS.

Infrared Light was allowed to scan our sample to detect the presence of our modified polymer. The optics system of the FTIR was housed in the part of the IR equipment called the golden gate.

Before any sample is analysed, it's best practice to perform a scan of the environment to know the gases present.

STEP 1

The source of the cellulose modified filter was first analysed to detect the functional groups present. The filter paper was adjusted calmly on the column. The apparatus was started and 32 scans were completed in an average of 7 mins. The spectra were presented in a graphical way. Which has a specific absorbance and scan width for each functional group detected.

STEP 2

A small amount of the modified cellulose is placed on the crystal of IR equipment and adjusted for better fit. Another 32 scans were performed and a similar spectra was presented but this time with the specific functional group present in the modified cellulose. Its important to make the space where the sample is placed dry due to the nature of the apparatus.

Neutralisation : The prepared solution was removed from the setup while its still hot, two drops of phenolphthalein indicator was added, the colour immediately changed to magenta. Acetic acid was added and the solution was changed to colourless after vigorous stirring for about 2 mins.

The prepared modified CMC was washed twice with methanol which has 80 w/t % purity and pure methanol, under pressure funnel. The final product was collected and onto a petri dish and dried for few days in 60 celsius degree environment