Abstract
A strategy for increasing the molecular weight of a polyester by lipase-catalyzed polymerization of a lactone and hydroxy acid was developed using azeotropic dehydration with toluene and a Dearn-Stark trap packed with molecular sieves. Thus, polycaprolactone (PCL) and poly(15-hydroxypentadecanoic acid) having number-average molecular weights of 81000 and 42000, respectively, were obtained by a 6-h polymerization at 70 °C.
| Original language | English |
|---|---|
| Pages (from-to) | 798-799 |
| Number of pages | 2 |
| Journal | Chemistry Letters |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 2001 |
ASJC Scopus subject areas
- Chemistry(all)