To Smell or Not to Smell, That is the Ester
Students explain the basic concepts of polymerization. Students participate in a lab to create a crude preparation of carboxyl esterase and test its effectiveness in reducing the residual monomer in an emulsion such as paint.
9th - 12th Science 3 Views 0 Downloads
Condensation Polymerization: Preparation of Thiokoll® (Polysulfide Rubber)
This lab activity is geared toward experienced chemistry learners, in particular, those who are familiar with organic chemistry. They will create a synthetic elastomer and then make observations and measurements of its different...
11th - Higher Ed Science
Lab: Successive Heat and Cool Cycles in Thermoplastic Polymers
Do the properties of a thermoplastic polymer change after successive cycles of heating and cooling? In this lab assignment, young chemists find out by melting, molding, and re-melting hot glue gun sticks one, two, and three times. They...
7th - 12th Science
Simple Tensile Testing of Polymeric Films and Sheeting
Chemistry classes pretend to be consultants to a grocery story trying to decide what polymer to use for therir new non-paper bags. They prepare tensile bars and use them to test plastic film samples for strength and stretchability. Both...
9th - Higher Ed Science