## Ring-opening polymerization of &-caprolactone in the presence of dicarboxylic acids Unfortunately, the second author's name has been misprinted in the above publication.
Microwave-Assisted Ring-Opening Polymerization of ε-Caprolactone in the Presence of Ionic Liquid
✍ Scribed by Liqiong Liao; Lijian Liu; Chao Zhang; Shaoqin (Sarah) Gong
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 142 KB
- Volume
- 27
- Category
- Article
- ISSN
- 1022-1336
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Summary: Microwave‐assisted ring‐opening polymerization of ε‐caprolactone in the presence of 1‐butyl‐3‐methylimidazolium tetrafluoroborate ionic liquid using zinc oxide as a catalyst is investigated. By adding 30 wt.‐% ionic liquid, poly(ε‐caprolactone) with a weight‐average molar mass of 28 500 g · mol^−1^ is obtained at 85 W for 30 min. The results indicate that the polymerization could be efficiently enhanced in the presence of ionic liquids under microwave irradiation because ionic liquids can effectively absorb microwave energy.
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📜 SIMILAR VOLUMES
## Abstract The ring‐opening polymerization of ε‐caprolactone (ε‐CL) has been investigated in the presence of succinic acid in nitrogen atmosphere at 225°C. Analysis of the resultant polymers suggests that the poly(ε‐caprolactone) (PCL) obtained has two terminal carboxylic groups. VPO, ^1^H NMR and
## Abstract PCL/clay nanocomposites were prepared by microwave‐assisted in situ ROP of __ε__‐caprolactone in the presence of either unmodified clay (Cloisite® Na^+^) or clay modified by quaternary ammonium cations containing hydroxyl groups (Cloisite 30B). This PCL showed significantly improved mon
## Abstract **Summary:** The microwave (MW)‐assisted lipase‐catalyzed ring‐opening polymerization of __ε__‐caprolactone in boiling solvents was investigated for the first time. In case of boiling toluene or benzene the MW‐assisted reaction proceeded significantly slower compared to oil bath heating
## Abstract Rate constants of the ring‐opening polymerization (ROP) of __ε__‐caprolactone (__ε__‐CL) by microwave heating (MH) and flash conventional heating (FCH) have been measured. The reaction is catalyzed by stannous octanoate (Sn(Oct)~2~). With a microwave power level of 400, 500, 600, 700 an