## Abstract A series of poly(R‐3‐hydroxybutyrate)/poly(ε‐caprolactone)/1,6‐hexamethylene diisocyanate‐segmented poly(ester‐urethanes), having different compositions and different block lengths, were synthesized by one‐step solution polymerization. The molecular weight of poly(R‐3‐hydroxybutyrate)‐d
Synthesis and Characterization of Novel Copoly(ester−urethane) Containing Blocks of Poly-[( R )-3-hydroxyoctanoate] and Poly-[( R )-3-hydroxybutyrate]
✍ Scribed by Andrade, Austin P.; Neuenschwander, Peter; Hany, Roland; Egli, Thomas; Witholt, Bernard; Li, Zhi
- Book ID
- 127081542
- Publisher
- American Chemical Society
- Year
- 2002
- Tongue
- English
- Weight
- 69 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0024-9297
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## Abstract Poly(ester‐urethane)s (PUs) were synthesized using hexamethylene diisocyanate (HDI) or toluene diisocyanate (TDI) to join short chains (__M__~n~ = 2000) of poly(R‐3‐hydroxybutyrate) (PHB) diols and poly(ε‐caprolactone) (PCL) diols with different feed ratios under different reaction cond
## Abstract **Summary:** Novel biodegradable polyester block copolymers have been synthesized by using well‐defined poly(3‐hydroxyoctanoate) (PHO) oligomers having a hydroxyl end group and an ester end group with $\overline M \_{\rm n}$ values of 800, 2 500, 5 300, 8 000, or 20 000 as an elastomeri