GPC and TGA

Gel Permeation Chromatography

The most common technique to determine the molecular weight of polymer and molecular weight distribution.

size

GPC separates polymers based on ____.

larger

____ polymers get through the GPC column faster.

conventional

This calibration uses RI or UV detectors and only gives relative molecular weight.

universal

This calibration uses RI or UV detectors and viscometry detectors to give absolute molecular weight.

Thermogravimetric Analysis (TGA)

Technique in which the mass of a substance is monitored as a function of temperature or time as the substance is subjected to a controlled temp and atmosphere.

weight loss

TGA thermograms measure ____.