Detecting the endpoint in interfacial aromatic polycarbonate pol

Details Detecting the endpoint in interfacial aromatic polycarbonate pol Detecting the endpoint in interfacial aromatic polycarbonate pol

1990-09-14

1992-05-19

Rollins, John W.

Chemistry: analytical and immunological testing

Synthetic or natural resin

436171, G01N 3344, G01N 2162

Patent

active

051148617

ABSTRACT:
A method is provided for detecting the endpoint of an interfacial aromatic polycarbonate polymerization reaction. The method involves illuminating a sample of the polymerization reaction mixture with a light source and monitoring the extent of apparent light scattering of the sample throughout the course of the polycondensation reaction until at the endpoint, a predetermined threshold extent of apparent light scattering is achieved.

REFERENCES:
patent: 4378454 (1983-03-01), Dick et al.
patent: 4506867 (1985-03-01), Burzminski
patent: 4814420 (1989-03-01), Brunelle et al.

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