Partial Depolymerization and Solubilization of Poly[(R)-3-hydroxybutanoate] (PHB) and Its Copolymer with (R)-3-Hydroxyvalerate (BIOPOL®) by Treatment with Li-Amides/LiCI in Tetrahydrofuran at Low Temperature
oleh: Dieter Seebach, Albert K. Beck, Urs Brändli, Dieter Müller, Michael Przybylski, Klaus Schneider
| Format: | Article |
|---|---|
| Diterbitkan: | Swiss Chemical Society 1990-05-01 |
Deskripsi
The biopolymers PHB and PHB/PHV (mol. weight > 7·105 g·mol?1) from fermentations of certain lot numbers or PHB samples which had previously been precipitated from dichloroethane solution can be dissolved by treatment with excess lithium-di-isopropylamide in LiCl-containing tetrahydrofuran. The samples recovered from these solutions in good yields have molecular weights of 1000–5000 g·mol?1.