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Synthetic Strategy for Preparing Chiral Double-semicrystalline Polyether Block Copolymers.
| Content Provider | Semantic Scholar |
|---|---|
| Author | McGrath, Alaina J. Shi, Weichao Rodriguez, Christina G. Kramer, Edward J. Hawker, Craig J. Lynd, Nathaniel A. |
| Copyright Year | 2015 |
| Abstract | We report an effective strategy for the synthesis of semi-crystalline block copolyethers with well-defined architecture and stereochemistry. As an exemplary system, triblock copolymers containing either atactic (racemic) or isotactic (R or S) poly(propylene oxide) end blocks with a central poly(ethylene oxide) mid-block were prepared by anionic ring-opening procedures. Stereochemical control was achieved by an initial hydrolytic kinetic resolution of racemic terminal epoxides followed by anionic ring-opening polymerization of the enantiopure monomer feedstock. The resultant triblock copolymers were highly isotactic (meso triads [mm]% ~ 90%) with optical microscopy, differential scanning calorimetry, wide angle x-ray scattering and small angle x-ray scattering being used to probe the impact of the isotacticity on the resultant polymer and hydrogel properties. |
| Starting Page | 1465 |
| Ending Page | 1473 |
| Page Count | 9 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.rsc.org/suppdata/py/c4/c4py01503g/c4py01503g1.pdf |
| PubMed reference number | 25914726v1 |
| Volume Number | 6 |
| Issue Number | 9 |
| Journal | Polymer chemistry |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Calorimetry Calorimetry, Differential Scanning Diagnostic radiologic examination Epoxy Compounds Hydrogel Kinetics Polymers Preparation Racemate Stereochemistry (discipline) Succimer Triad Acrylic Resin monomer polyether 82 |
| Content Type | Text |
| Resource Type | Article |
