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Synthetic Strategy for Preparing Chiral Double-semicrystalline Polyether Block Copolymers
| Content Provider | PubMed Central |
|---|---|
| Author | Mcgrath, Alaina J. Shi, Weichao Rodriguez, Christina G. Kramer, Edward J. Hawker, Craig J. Lynd, Nathaniel A. |
| Copyright Year | 2013 |
| 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. |
| Related Links | http://dx.doi.org/10.1039/c4py01503g |
| Ending Page | 1473 |
| Page Count | 9 |
| Starting Page | 1465 |
| File Format | |
| ISSN | 17599954 |
| e-ISSN | 17599962 |
| Journal | Polymer chemistry |
| Issue Number | 9 |
| Volume Number | 6 |
| Language | English |
| Publisher Date | 2015-01-01 |
| Access Restriction | Open |
| Subject Keyword | Organic Chemistry Biochemistry Bioengineering Polymers and Plastics Biomedical Engineering Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Biochemistry Bioengineering Biomedical Engineering Polymers and Plastics |
