The procedure of aggregate-free poly(vinyl chloride) (PVC) solutions for size-exclusion chromatography (SEC) at room temperature using tetrahydrofuran (THF) as the mobile phase is proposed. PVC was dissolved in 1,2,4-trichlorobenzene (TCB) at 130 or 140ΠC for 6 h, precipitated in methanol, filtrated
Size exclusion chromatographic measurement of PVC molecular weight distributions
β Scribed by Simon Pang; Alfred Rudin
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 503 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0021-8995
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## Abstract Size exclusion chromatography (SEC) is a common method for the determination of molecular weight distributions (MWD) of polymers. Using appropriate normalization procedures, MWD data may be put in a form suitable for the description by different theoretical distribution functions. In th
Cellulose tricarbanilates (CTCs) were prepared from a range of cellulose samples (cotton linters, wood pulps, Avicel, amorphous cellulose, and cellulose 11) for molecular weight distribution (MWD) studies by high performance size exclusion chromatography (HPSEC). The HPSEC columns were calibrated us