Humidity sensing properties of polyaniline potassium molybdate composites 2
viva Hakim FINAL
1. Silicon Dioxide filled Polymethyl
methacrylate / 50% epoxidized natural
rubber with propylene carbonate
electrolyte
NAME
MUHAMMAD HAKIM BIN HALIM
NAME OF SUPERVISOR
SHARIL FADLI MOHAMAD ZAMRI
2. INTRODUCTION
PMMA as the polymer host, because of the existence
of the carbonyl (C=O) and methoxy (-O-CH3) group,
providing site for coordinative bond allowing ion
hoping, Unfortunately, PMMA is brittle and hard
Resulting in low chain mobility which is not suitable
for ion hoping mechanism . Hence ENR 50 will be
add to provide extra flexibility and soften it to
enhance the ion hoping mechanism
But, the PMMA/ENR 50 blend are not homogenous,
hence phase separation are formed, phase separation
are not desirable as it can reduce the efficiency of the
ion hoping mechanism
Thus SiO2 is added to reduce phase separation, but SiO2
tend to agglomerate when mixed with the polymer blend
While PC added to improve ionic conductivity and the
effects of its addition were studied
PC
4. Significance of Study
1. To investigate the effect of PC on the agglomeration in
PMMA/ENR 50/ SiO2 electrolyte system
2. To improved the ionic conductivity of PMMA/ENR 50/ SiO2
electrolyte system with the addition of PC
Objective of Study
Contribute to new knowledge on preparation of polymer
electrolytes with improved physical and electrochemical
properties.
5. LITERATURE REVIEW
Research by Finding
(Hu et al., 2006)
and (Su'ait et
2009)
PMMA membrane was brittle and has poor mechanical
Properties, hence PMMA cannot be use directly as
electrolyte
(Aurbach, PC possesses outstandingly high dielectric constant
64. PC usually used as high-permittivity component
electrolytes in lithium batteries
(Kuila et all,
2007)
Addition of PC into the polymer electrolyte system
found to lowered the glass transition temperature and
improved ionic conductivity
14. CONCLUSION
• FTIR,TGA,OM,DSC AND EIS were
successfully used in the study of the
thermal, morphology, and conductivity of
the PMMA/ENR 50/SiO2 polymer
electrolyte
• PC found to improved ionic conductivity up
to 30%
15. RECOMMENDATION
• Based on this study, it can be interesting
to see how different amount of PC added
will affect the ionic conductivity of the
polymer electrolyte, whether the more is
better or there is a limited amount of PC
can be used to improve ionic conductivity
of the polymer electrolyte
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