Probing Collective Motions of Terminally Anchored Polymers
| العنوان: | Probing Collective Motions of Terminally Anchored Polymers |
|---|---|
| المؤلفون: | Spiros H. Anastasiadis, Dimitris Vlassopoulos, George Fytas, Chris Toprakcioglu, Rachid Seghrouchni, Wolfgang Theobald, J. B. Li, Bradford J. Factor |
| المصدر: | ResearcherID |
| بيانات النشر: | American Association for the Advancement of Science (AAAS), 1996. |
| سنة النشر: | 1996 |
| مصطلحات موضوعية: | chemistry.chemical_classification, Mesoscopic physics, Multidisciplinary, business.industry, Thermal fluctuations, Anchoring, Polymer, Wavelength, Optics, Dynamic light scattering, chemistry, Chemical physics, Surface dynamics, business, Layer (electronics) |
| الوصف: | Polymer chains attached by one end to an impenetrable surface at high coverage exemplify a tethered layer of mesoscopic dimensions. At equilibrium, thermal fluctuations of the segment density profile of the brushlike layer reflect the tethered chain dynamics; the probing of these fluctuations by evanescent-wave dynamic light scattering is reported. By utilizing a set of terminally attached layers with thicknesses (L 0 ) from 45 to 130 nanometers, it was found that there is a preferred wavelength of order L 0 of these fluctuations with a concurrent slowing down of their thermal decay rate. This technique could open the route for the investigation of the largely unexplored area of polymer surface dynamics. |
| تدمد: | 1095-9203 0036-8075 |
| DOI: | 10.1126/science.274.5295.2041 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::43a34f50cc5af9b7d5fb541937906dd2 https://doi.org/10.1126/science.274.5295.2041 |
| رقم الانضمام: | edsair.doi.dedup.....43a34f50cc5af9b7d5fb541937906dd2 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 10959203 00368075 |
|---|---|
| DOI: | 10.1126/science.274.5295.2041 |