Investigations on the morphology and conductivity of peo / enr-25 / liclo4 blend in relation to atr-ftir study on the blends / Nurhayati Kamyon

Kamyon, Nurhayati (2010) Investigations on the morphology and conductivity of peo / enr-25 / liclo4 blend in relation to atr-ftir study on the blends / Nurhayati Kamyon. Degree thesis, Universiti Teknologi MARA (UiTM).

Abstract

Blends of PEO/ENR/LiC104 were prepared by solution casting technique. Conductivity (er) of poly(ethylene oxide) (PEO), a semicrystalline polymer and an amorphous epoxidized natural rubber with 25 mol% epoxidation level (ENR-25) doped with Y = 0.00 to Y = 0.20 (lithium perchlorate) LiC104 were studied by Impedance spectroscopy. The conductivity results show that the Li salt dissociates more in PEO than in ENR-25.The morphology of the blends were studied using polarized optical microscope (POM). Incorporation of LiC104 to neat PEO and the PEO/ENR blends suppress the crystallinity of PEO leading to the observation of widening area of amorphous region in the once volume filled morphology of PEO. The Fourier transform infrared (FTIR) studies were carried out using Nicolet FTIR and data from the FTIR spectra show a reduction in the crystallinity of PEO as observed in the changes in the characteristic peaks assigned to the crystalline region of PEO. No dipole-dipole interaction between PEO and ENR-25 were observed from the FTIR spectra of the various composition of the blend.

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Item Type: Thesis (Degree)
Creators:
Creators
Email / ID Num.
Kamyon, Nurhayati
UNSPECIFIED
Contributors:
Contribution
Name
Email / ID Num.
Thesis advisor
Sim, Lai Har
UNSPECIFIED
Thesis advisor
Chan, Chin Han
UNSPECIFIED
Divisions: Universiti Teknologi MARA, Shah Alam > Faculty of Applied Sciences
Programme: Bachelor of Science (Hons.)
Date: 2010
URI: https://ir.uitm.edu.my/id/eprint/103991
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