Abstract
High osmotic pressure chromatography (HOPC) was applied to preparative separation of poly(ε-caprolactone), a biodegradable polymer, by molecular weight (MW). When the solvent was toluene, a near-Θ solvent for the polymer, the MW distribution was narrow in all of the separated fractions except late fractions. In dioxane, which is a good solvent, in contrast, the MW distribution narrowed only in early fractions. The difference is explained by a recent computer simulation study on partitioning in Θ solvent and a concept of self-adjusting pore size by adsorbed polymer.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 7093-7099 |
| Number of pages | 7 |
| Journal | Macromolecules |
| Volume | 35 |
| Issue number | 18 |
| DOIs | |
| State | Published - Aug 27 2002 |
ASJC Scopus subject areas
- Organic Chemistry
- Polymers and Plastics
- Inorganic Chemistry
- Materials Chemistry