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Article: In-Line residence time distribution of dicarboxylic acid oligomers/dioxazoline chain extension by reactive extrusion.
- Article from:
- Polymer Engineering and Science
- Article date:
- February 1, 1999
- Author:
CopyrightCOPYRIGHT 1999 Society of Plastics Engineers, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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INTRODUCTION
Studies of flow mechanisms and the modeling of the reactive extrusion process need information concerning Residence Time Distribution (RTD). RTD was used in reactive engineering for more than six decades, giving diagnostic tools for the detection of maldistribution inside the reactor, providing data for flow modeling, and quantifying the thermal history and mixing of reactants. Different aspects of RTD have been discussed in several books (1-3) and review articles (4-5). RTD studies also have been made for single and twin-screw extrusion. Tracers such as colorants (6-7) particles (7-8) radioactive elements {9}, and UV (8, 10-11) have been used. ...
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