Studying Twin Samples Provides Evidence for a Unique Structure-Determining Parameter in Simplifed Industrial Nanocomposites
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- 作者：Guilhem P. Baeza ; Anne-Caroline Genix ; Christophe Degrandcourt ; J茅r茅mie Gummel ; Anas Mujtaba ; Kay Saalw盲chter ; Thomas Thurn-Albrecht ; Marc Couty ; Julian Oberdisse
- 刊名：ACS Macro Letters
- 出版年：2014
- 出版时间：May 20, 2014
- 年：2014
- 卷：3
- 期：5
- 页码：448-452
- 全文大小：310K
- 年卷期：v.3,no.5(May 20, 2014)
- ISSN：2161-1653
文摘
The structure of styrene鈥揵utadiene (SB) nanocomposites filled with industrial silica has been analyzed using electron microscopy and small-angle X-ray scattering. The grafting density per unit silica surface 蟻D3 was varied by adding graftable SB molecules. By comparing the filler structures at fixed 蟻D3 (so-called 鈥渢wins鈥?, a surprising match of the microstructures was evidenced. Mechanical measurements show that 蟻D3 also sets the modulus: it is then possible to tune the terminal relaxation time of nanocomposites via the chain length while leaving the modulus and structure unchanged.