This document analyzes the properties and characteristics of Polymethylmethacrylate (PMMA), as well as its applications in the production of safety glasses, Plexiglas, and glasses for optics, cars, and dishes. The molecular weight of the polymer ranges from 120000 to 180000 g/mol. Evaluating the molecular weight ensures product quality.
This document details the analysis of Polymethylmethacrylate (PMMA) using Gel Permeation Chromatography (GPC). It explains that PMMA is used in various applications such as safety glasses and optics, and that its performance depends on molecular weight. The note outlines the method conditions, including the use of a PSS GPC column and THF mobile phase, and provides a standard chromatogram example.
| Molecular weight range | 120000 to 180000 g/mol |
|---|---|
| Precision of Mw | < 1% |
| Precision of Mn | < 2% |
| Column | PSS GPC 8 ~ 300 mm, 5 um |
| Mobile phase | Tetrahydrofurane (THF) |
| Flow rate | 0.8 ml/min |
| Oven Temp | 20 9C |
| Injection vol | 10 Jl |
The precision of the weight average molecular weight (rsd of Mw) is less than 1%.
The precision of the number weight average molecular weight (rsd of Mn) is less than 2%.