Alkenes Flashcards
Problems with disposal of addition polymers
Non biodégradable
The C chain is non polar and cannot be broken by hydrolysis
Addition polymers are therefore very stable and don’t break down naturally
Problems with disposal of addition polymers
Burning produces toxic gases
Polychloroethene PVC contains chlorine which produce toxic gases when burned
Processing. Waste addition polymers
Combustion for energy production
Removal of toxic waste products
Use as an organic feedstock for the production of plastics and other organic chemicals (cracked into smaller chain alkanes and alkenes)
Sorted and recycled
Role of chemists in minimising environmental damage
Develop biodegradable polymers which are broken down by microorganisms in water
Develop photodegradable polymers where plant-based polymerism is not possible; these are oil based and contain bonds that are weakened by absorbing light
Use of an alkaline scrubber to neutralise toxic HCL gas produced when chloropolymers are incinerated/ burned
