4666GPC.LAB - EMA 4666C POLYMER PROCESSING LABORATORY EXPERIMENT 1 MOLAR MASS DETERMINATION PURPOSE To learn the method of characterization of

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EMA 4666C POLYMER PROCESSING LABORATORY EXPERIMENT 1 - MOLAR MASS DETERMINATION PURPOSE: To learn the method of characterization of molar mass known as size exclusion chromatography (SEC) or gel permeation chromatography (GPC). MATERIALS: 1 gram of commercial grade poly(styrene) Poly(styrene) standards (~1 x 10 4 g/mol, 1 x 10 5 g/mol, 1 x 10 6 g/mol) 4 liters of tetrahydrofuran (HPLC grade) 0.5 micron Millipore filter and filter housing 5 sample vials, caps and seals 25 ml flask 10 ml graduated cylinder EQUIPMENT: Linear GPC column (5 x 10 3 g/mol to 1 x 10 6 g/mol) HPLC Chromatograph Differential Refractometer Autoinjector Millenium Software or equivalent Electronic balance Magnetic stirring bar and stirrer Personal computer PROCEDURE: 1. Dry the 1 gram of polymer sample to be analyzed at 80 ° C for 1 hour at 26 in Hg. The manufacturer's recommended drying procedure should be determined and followed if it differs. 2.
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This note was uploaded on 07/17/2011 for the course EMA 4666c taught by Professor Brennan during the Spring '08 term at University of Florida.

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4666GPC.LAB - EMA 4666C POLYMER PROCESSING LABORATORY EXPERIMENT 1 MOLAR MASS DETERMINATION PURPOSE To learn the method of characterization of

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