Journal of Surface Science and Technology

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Investigation of Miscibility and Aggregate Formation in the Langmuir-Blodgett Film of 2-Aminoanthracene in a Polymer Matrix


Affiliations
1 Centre of Studies in Surface Science and Technology, School of Chemistry, Sambalpur University, Jyoti Vihar-768 019, Orissa, India
2 Department of Physics, National Institute of Technology, Rourkela-788 011, Orissa, India
3 Department of Chemistry, Tripura University, Suryamaninagar-799 130, Tripura, India
     

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Preparation of Langmuir-Blodgett (LB) films of non-amphiphilic 2-aminoanthracene (2AA) in a polymer matrix, namely poly (methyl methacrylate) (PMMA) has been reported. Isotherms of surface pressure versus area per molecule at different compositions are measured. Miscibility of 2AA and PMMA has been studied from the pressure-area isotherms by using surface rule and excess area criterion. Miscibility studies reveal that repulsive interaction is dominant in the 2AA/PMMA system. This repulsive interaction may facilitate aggregate formation in the mixed film. Morphological study of the mixed LB films undoubtedly confirms the existence of microcrystalline domains.

Keywords

2-Aminoanthracene, Monolayer, Air-Water Interface, Langmuir-Blodgett Film, Aggregate.
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  • Investigation of Miscibility and Aggregate Formation in the Langmuir-Blodgett Film of 2-Aminoanthracene in a Polymer Matrix

Abstract Views: 208  |  PDF Views: 2

Authors

Ajitesh Pal
Centre of Studies in Surface Science and Technology, School of Chemistry, Sambalpur University, Jyoti Vihar-768 019, Orissa, India
Bijay Kumar Mishra
Centre of Studies in Surface Science and Technology, School of Chemistry, Sambalpur University, Jyoti Vihar-768 019, Orissa, India
Simanchalo Panigrahi
Department of Physics, National Institute of Technology, Rourkela-788 011, Orissa, India
Ranendu Kumar Nath
Department of Chemistry, Tripura University, Suryamaninagar-799 130, Tripura, India

Abstract


Preparation of Langmuir-Blodgett (LB) films of non-amphiphilic 2-aminoanthracene (2AA) in a polymer matrix, namely poly (methyl methacrylate) (PMMA) has been reported. Isotherms of surface pressure versus area per molecule at different compositions are measured. Miscibility of 2AA and PMMA has been studied from the pressure-area isotherms by using surface rule and excess area criterion. Miscibility studies reveal that repulsive interaction is dominant in the 2AA/PMMA system. This repulsive interaction may facilitate aggregate formation in the mixed film. Morphological study of the mixed LB films undoubtedly confirms the existence of microcrystalline domains.

Keywords


2-Aminoanthracene, Monolayer, Air-Water Interface, Langmuir-Blodgett Film, Aggregate.