Kuila, Biplab K. ; Nandi, Arun K. (2009) Poly(3-dodecyl thiophene)-organically modified montmorillonite clay nanocomposites: influence of chain regioregularity and preparation condition on physical, mechanical, optical, and conductivity properties Journal of Applied Polymer Science, 111 (1). pp. 155-167. ISSN 0021-8995
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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/app.290...
Related URL: http://dx.doi.org/10.1002/app.29074
Abstract
The properties of regioregular(R) (98.5 mol % H-T) and regioirregular(I) (80.5 mol % H-T) poly(3-dodecyl thiophene)(P3DDT)-organically modified montmorillonite (om-MMT) clay nanocomposites obtained from solvent-cast and melt-cooled procedures are compared. The solvent-cast P3DDTI nanocomposites showed partially exfoliated clay structure but P3DDTR nanocomposites showed multistack exfoliation. Type 1 crystalline polymorph was produced in solvent-cast systems whereas melt-cooled P3DDTI samples showed mesomorphic structure. Storage modulus of P3DDTI nanocomposites increased with clay concentration showing a maximum increase of 255%. The UV-vis spectra showed blue shift of π-π transition band and photoluminescence spectra indicated seven times increase of normalized intensity in solvent cast P3DDTI composites. DC conductivity and I-V characteristic curves showed increased insulating properties with om-clay concentration. The physical, mechanical, and optical properties of P3DDTI nanocomposites are more improved than that of P3DDTR nanocomposites and from their pristine polymers.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to John Wiley and Sons. |
| Keywords: | Nanocomposites; Clay; Poly(3-dodecyl Thiophene) |
| ID Code: | 85321 |
| Deposited On: | 02 Mar 2012 06:57 |
| Last Modified: | 02 Mar 2012 06:57 |
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