The extruder as a polymerisation reactor for styrene based polymers

This thesis describes the counterrotating twin screw extruder as a polymerisation reactor for styrene based polymers. The use of the extruder as a polymerisation reactor offers new possibilities for synthesising polymers and polymer blends without using any solvents,which makes the process environmentally friendly. Since previous research showed the closely intermeshing counterrotating twin screw extruder to be the most stable polymerisation reactor, this type of extruder was used during the whole study. Furthermore,the average shear level is low in a counterrotating twin screw extruder, which prevents degradation of the newly formed polymer to occur.
Styrene is chosen as main component since it is a well-known and versatile monomer.
The study described in this thesis covers three different subjects:
1.The general theory of counterrotating twin screw extruders;
2.The extruder as a polymerisation reactor: The product properties;
3.The extruder as a polymerisation reactor: The process characteristics.

	titlepages/contents
	chapter 1
	chapter 2
	chapter 3
	chapter 4
	chapter 5
	chapter 6
	chapter 7
	chapter 8
	chapter 9
	samenvatting
	summary
	complete thesis

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