| 摘要 |
The invention relates to a method for monitoring the rate of evolution of volatile species during polymerizations and use of that method to effect improvements in process and product.In particular,this invention is useful for improving the process productivity and product quality in both batch and continuous production of polyamides.The present invention provides for a method for controlling the properties of the product polymer of a polymerization process, the process comprising at least one means for controlling at least one process input parameter and a means for venting the gases generated during the polymerization, thereby forming a vent gas stream, the method comprising: diverting at least a portion of the vent gas stream to a compositional analysis means; analysing the diverted portion of the vent gas stream to determine the concentration of at least one component of the vent gas stream; ascertaining a rate of less of the at least one component of the vent gas stream; comparing the rate of loss to a predetermined goal in order to provide an indication of the corrective action required; and executing the corrective action indicated.
|
