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Effect of Shear Flow on the Polymeric Gels Formed by Macroscopic Phase Separation
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Park, Moon Jeong | - |
| dc.contributor.author | Char, Kookheon | - |
| dc.date.accessioned | 2009-07-27T04:52:50Z | - |
| dc.date.available | 2009-07-27T04:52:50Z | - |
| dc.date.issued | 2004-05-24 | - |
| dc.identifier.citation | Macromol. Rapid Commun. 2004, 25, 1082-1089 | en |
| dc.identifier.issn | 1022-1336 (print) | - |
| dc.identifier.issn | 1521-3927 (online) | - |
| dc.identifier.uri | https://hdl.handle.net/10371/5845 | - |
| dc.description.abstract | Summary: Shear-induced phase behavior of poly(ethylene oxide-b-(DL-lactic acid-co-glycolic acid)-b-ethylene oxide) (PEO-PLGA-PEO) triblock copolymers in water is investigated using rheology and small-angle neutron scattering equipped with an in situ Couette shear cell. For gels formed by the macroscopic phase separation, the steady shear experiment reveals that the flow-induced anisotropy on a nanometer length scale at a critical shear rate and the phase separation on a larger length scale are successively induced with a further increase in the shear rate. In particular, the hard gels show a memory effect inscribed by a pre-high shear in contrast to the soft gels. | en |
| dc.description.sponsorship | We acknowledge financial support from
the National Research Laboratory Fund (Grant M1-0104-00- 0191) by the Ministry of Science and Technology of Korea and from the Brain Korea 21 Program endorsed by the Ministry of Education of Korea.We are also very grateful to Jamie Schulz and Steve Kline (NIST) for their kind assistance during the SANS experiments at NIST. | en |
| dc.language.iso | en | - |
| dc.publisher | John Wiley & Sons | en |
| dc.subject | gels | en |
| dc.subject | memory effect | en |
| dc.subject | PEO-PLGA-PEO | en |
| dc.subject | shear | en |
| dc.title | Effect of Shear Flow on the Polymeric Gels Formed by Macroscopic Phase Separation | en |
| dc.type | Article | en |
| dc.contributor.AlternativeAuthor | 박문정 | - |
| dc.contributor.AlternativeAuthor | 차국헌 | - |
| dc.identifier.doi | 10.1002/marc.200400042 | - |
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