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Can I read High-pressure Solution Blending of Poly(ɛ-caprolactone) with Poly(methyl Methacrylate) in Acetone + Carbon Dioxide on EtoBox?
High-pressure Solution Blending of Poly(ɛ-caprolactone) with Poly(methyl Methacrylate) in Acetone + Carbon Dioxide by Kun Liu; Erdogan Kiran is a Materials Science article available to read on EtoBox.
What is High-pressure Solution Blending of Poly(ɛ-caprolactone) with Poly(methyl Methacrylate) in Acetone + Carbon Dioxide about?
The miscibility of blends of poly(3-caprolactone) (PCL, M w 1⁄4 14,300) with poly(methyl methacrylate) (PMMA, M w 1⁄4 15K or 540K) in acetone þ CO 2 mixed solvent has been explored. The liquideliquid phase boundaries at different temperatures have been determined for mixtures containing 10 wt% total polymer blend, 50 wt% acetone and 40 wt% CO 2 . The PCL and PMMA contents of the blends were varied while holding the total polymer concentration at 10 wt%. The polymer blend solutions all displayed LCST-type behavior and required higher pressures than individual polymer components for complete miscibility. Complete miscibilities were achieved at pressures within 40 MPa. The DSC scans show that the blends are microphase-separated. The blends display the melting transition of PCL and the glass transition temperature of the PMMA phases. The presence of PMMA is found to influence the crystallization and melting behavior of PCL in the blends. The DSC results on heat of melting and the FTIR spectra, specifically the changes at 1295 cm À1 band show the changes (decrease) in overall crystallinity of the blend upon addition of PMMA.
Who reads High-pressure Solution Blending of Poly(ɛ-caprolactone) with Poly(methyl Methacrylate) in Acetone + Carbon Dioxide?
It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- Kun Liu; Erdogan Kiran
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0032-3861)
- Published
- 2008
- Language
- EN
- Field
- Materials Science (Physical Sciences)