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| Content Provider | Springer Nature Link |
|---|---|
| Author | Kwon, Doo Yeon Tai, Guo Zhe Park, Ji Hoon Lee, Bo Keun Lee, Jae Hyeok Kim, Jae Ho Lee, Kyu Wan Lee, Bong Jang, Ju Woong Kim, Moon Suk |
| Copyright Year | 2014 |
| Abstract | To compare methoxy poly (ethylene glycol) (MPEG)-b-poly (ε-caprolactone) (M$_{7}$C$_{10}$L$_{0}$) and MPEG-b-poly (L-lactide) (M$_{7}$C$_{0}$L$_{10}$), we performed block copolymerization of ε-caprolactone (CL) and L-lactide (LA) to synthesize block copolymers composed of MPEG-b-poly (ε-caprolactone-co-L-lactide) (M$_{x}$C$_{y}$L$_{z}$). The obtained M$_{x}$C$_{y}$L$_{z}$, M$_{7}$C$_{10}$L$_{0}$, and M$_{7}$C$_{0}$L$_{10}$ had molecular weights close to the theoretical values calculated from the CL and/or LA to MPEG molar ratios and exhibited monomodal gel permeation chromatography (GPC) curves. The micellar characterization of M$_{x}$C$_{y}$L$_{z}$ block copolymers in an aqueous phase was carried out by using NMR, dynamic light scattering (DLS), and fluorescence techniques. The diameters of micelles, measured by DLS, were 30–370 nm. The critical micelle concentration (CMC) and partition equilibrium constant (K $_{v}$) depended on the block lengths and compositions of block copolymers. The degradation of the M$_{x}$C$_{y}$L$_{z}$ block copolymers mainly depends on both the length of hydrophilic MPEG segments and the proportion of the CL and LA in the hydrophobic segments present in their structure. We confirmed that M$_{x}$C$_{y}$L$_{z}$ block copolymers formed biodegradable micelles suitable for biomedical applications. |
| Starting Page | 1 |
| Ending Page | 9 |
| Page Count | 9 |
| File Format | |
| ISSN | 10229760 |
| Journal | Journal of Polymer Research |
| Volume Number | 21 |
| Issue Number | 6 |
| e-ISSN | 15728935 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2014-05-17 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Block copolymer Poly (ε-caprolactone-co-L-lactide) Critical micelle concentration Hydrophobicity Degradation Polymer Sciences Industrial Chemistry/Chemical Engineering Characterization and Evaluation of Materials |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Materials Chemistry Polymers and Plastics |
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