This title appears in the Scientific Report :
2010
Please use the identifier:
http://hdl.handle.net/2128/4668 in citations.
Please use the identifier: http://dx.doi.org/10.1103/PhysRevE.81.020402 in citations.
Slow dynamics, aging, and crystallization of multiarm star glasses
Slow dynamics, aging, and crystallization of multiarm star glasses
Multiarm star polymers are model systems with tunable intermediate colloid to polymerlike character, exhibiting rich phase behavior, internal relaxations, and flow properties. An important puzzle for several years has been the lack of clear experimental proof of crystalline states despite strong the...
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Personal Name(s): | Stiakakis, E. |
---|---|
Wilk, A. / Kohlbrecher, J. / Vlassopoulos, D. / Petekidis, G. | |
Contributing Institute: |
Weiche Materie; IFF-7 |
Published in: | Physical Review E Physical review / E, 81 81 (2010 2010) 2 2, S. 020402 020402 |
Imprint: |
College Park, Md.
APS
2010
2010-02-18 2010-02-01 |
Physical Description: |
020402 |
DOI: |
10.1103/PhysRevE.81.020402 |
Document Type: |
Journal Article |
Research Program: |
BioSoft Kondensierte Materie |
Series Title: |
Physical Review E
81 |
Subject (ZB): | |
Link: |
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Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1103/PhysRevE.81.020402 in citations.
Multiarm star polymers are model systems with tunable intermediate colloid to polymerlike character, exhibiting rich phase behavior, internal relaxations, and flow properties. An important puzzle for several years has been the lack of clear experimental proof of crystalline states despite strong theoretical predictions. We present unambiguous evidence via multispeckle dynamic light scattering (MSDLS) and small-angle neutron scattering (SANS) for such crystallization in a solvent of intermediate quality. An unexpected speed up of the short-time star diffusion observed in MSDLS was attributed by SANS to crystallization, via aging, of the multiam star glass. This delayed glass to crystal transition establishes a pathway for star crystallization that might be generic in colloidal glasses. |