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A novel method was established to investigate the gelation process of polymers. The change of refractive index ofa polymer system during gelation was determined in situ in a prismatic cell. It can give reliable information on the wholegelation process. The apparatus and the execution of this technique are illustrated and the error is also discussed.
A novel method was established to investigate the gelation process of polymers. The change of refractive index ofa polymer system during gelation was determined in situ in a prismatic cell. It apparatus and the execution of this technique are illustrated and the error is also discussed.