Polymers

Lab 12: POLYMERS documentary: In this lab we learn and defined the molecular structure of polymers. We analyzed the procedure of cross-linking arctic types of polymers and observe the changes in the tangible properties as a egress of this cross-linking. The changes in physical properties of a cross-linked polymer ar also ensure as the temperature is varied. INTRODUCTION: Polymers are large molecules made up of repeating units (monomers.) These units are chemical substance molecules. There are ii polymerization types that we analyzed in the experiment: thermoplastic polymers and thermo even offting polymers. Thermoplastic polymers changes properties when affectionatenessed and iciness outed. Thermoplastics become soft when heat is use and have a smooth, hard finish when imperturbableed. thermoset polymers when open(a) to temperatures above their glass pitch contour temperature (Tg) are molded into hammers and when allowed to cool will non change shape when heated once more(prenominal) entirely will flame or burn. PROCEDURE: We followed the procedures find in the course manual, CHM112 ecumenical Chemistry Laboratory Manual, LaSalle University, dress down 2012. EXPERIMENTAL RESULTS: PART A- 1.)Compare the expression of the settlements in flaskful #1 and #2. What can you say more or less the effect of having glucose by itself versus having I present in a polymer chain?

flask #1 is clear because the sugar all in all dissolves in the urine, go flask #2 is cloudy because the bonds of stiffen do not muffle nor dissolve in water. 2.)What recover when you added the sexually transmitted disease to the amylum resolvent? Does it more closely match the glucose/ water, or the stiffen/ water mixture? When the acid was added to starch it does not dissociate until a higher volume of acid is included in the solution. initially the solution closely resembles the starch/ water mixture only if as additional mL was added the solution resembled the glucose/ water mixture. 3.)What would expire if a corn localize was largely made up of glucose rather than...If you want to generate a full essay, set it on our website: Ordercustompaper.com

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