Introduction Our group will be focusing on Polymers as our chosen topic. A polymer is a large molecule or a macromolecule formed by joining many repeated subunits. They may be naturally found in plants and animals known as the natural polymers or may be man-made called the synthetic polymers. Different polymers have a number of unique physical and chemical properties… Read more →
Month: March 2017
The World of Polymers and Plastics – Unit 8
Acetone dissolves the polymer, allowing the gas of the foaming agent to escape. The polymer collapses on itself and is more dense because the gas has been removed. LDPE cannot be used in this application because it does not have the required strength. The molecules of HDPE must line up in a way that produces the required strength. Using a… Read more →
Neutralising the Threat of Acid Rain (Session 6: Unit 6)
1.Mammoth Cave National Park in Kentucky is in close proximity to the coal-fired electric utility plants in the Ohio Valley. Noting this, the National Parks Conservation Association (NPCA) reported that this national park had the poorest visibility of any in the country. a) What is the connection between coal-fired plants and poor visibility? Coal-fired plants release sulfur dioxide, creating sulfate… Read more →