Effect of filler amount on thermoelastic properties of poly (dimethylsiloxane) networks

Demir, Mustafa Muammer and Menceloğlu, Yusuf Z. and Erman, Burak (2005) Effect of filler amount on thermoelastic properties of poly (dimethylsiloxane) networks. Polymer, 46 (12). pp. 4127-4134. ISSN 0032-3861 (Print) 1873-2291 (Online)

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End-linked poly(dimethylsiloxane) (PDMS) networks were prepared in the presence of fumed silica particles with hydroxyl groups at their surfaces. The silica particles were introduced into the polymer solution prior to end-linking. Hydroxyl ended PDMS chains were end-linked via the tetra functional crosslinker, tetraethoxysilane. The filler content varied in the range 0–5 wt%. Atomic Force Microscopy was used to image and characterize the silica particles. Swelling, stress–strain and thermoelasticity experiments were performed. The temperature coefficient and the energetic part of the force in uniaxial extension are found to increase with increasing silica amount. This observation is ascribed to effects contributed possibly by the adsorption layer around the silica particles.
Item Type: Article
Additional Information: WoS - Open Access (Green Published)
Uncontrolled Keywords: poly(dimethylsiloxane); thermoelasticity; fumed silica
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Engineering and Natural Sciences
Depositing User: Yusuf Z. Menceloğlu
Date Deposited: 02 Dec 2005 02:00
Last Modified: 26 Apr 2022 08:07
URI: https://research.sabanciuniv.edu/id/eprint/415

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