Synthesis And Properties Of Highly Cross-Linked Polysiloxane For LED Encapsulant

The research focuses on the synthesis of two series of polysiloxane. The first series (S1) is hydrosilyl-terminated polydimethylsiloxane (HTP) that was cured with 2,4,6,8-tetramethyl-2,4,6,8-tetravinyl cyclotetrasiloxane (D4V) and second series (S2) is the incorporation of octaphenylcyclotetrasiloxa...

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Main Author:	Looi, Yien Tyng
Format:	Thesis
Language:	English
Published:	2012
Subjects:	TN1-997 Mining engineering Metallurgy
Online Access:	http://eprints.usm.my/44829/1/LOOI%20YIEN%20TYNG.pdf
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id	my-usm-ep.44829
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spelling	my-usm-ep.448292019-07-03T01:30:51Z Synthesis And Properties Of Highly Cross-Linked Polysiloxane For LED Encapsulant 2012-06 Looi, Yien Tyng TN1-997 Mining engineering. Metallurgy The research focuses on the synthesis of two series of polysiloxane. The first series (S1) is hydrosilyl-terminated polydimethylsiloxane (HTP) that was cured with 2,4,6,8-tetramethyl-2,4,6,8-tetravinyl cyclotetrasiloxane (D4V) and second series (S2) is the incorporation of octaphenylcyclotetrasiloxane (P4) into first series. The polymers of both series underwent thermal curing. UV curing was performed on the first series to improve the curing time as well as comparing their properties. The polysiloxanes product was a water clear gel form. The elastomeric feature of series S1 was dependent on the end-capper concentration, 1,1,3,3- tetramethyldisiloxane while series S2 was dependent on the amount of phenyl group of octaphenylcyclotetrasiloxane (P4) employed during its synthesis. FTIR and NMR was used to confirm the functional group of HTP and completion of the hydrosilylation reaction. 2012-06 Thesis http://eprints.usm.my/44829/ http://eprints.usm.my/44829/1/LOOI%20YIEN%20TYNG.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Kejuteraan Bahan & Sumber Mineral
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	TN1-997 Mining engineering Metallurgy
spellingShingle	TN1-997 Mining engineering Metallurgy Looi, Yien Tyng Synthesis And Properties Of Highly Cross-Linked Polysiloxane For LED Encapsulant
description	The research focuses on the synthesis of two series of polysiloxane. The first series (S1) is hydrosilyl-terminated polydimethylsiloxane (HTP) that was cured with 2,4,6,8-tetramethyl-2,4,6,8-tetravinyl cyclotetrasiloxane (D4V) and second series (S2) is the incorporation of octaphenylcyclotetrasiloxane (P4) into first series. The polymers of both series underwent thermal curing. UV curing was performed on the first series to improve the curing time as well as comparing their properties. The polysiloxanes product was a water clear gel form. The elastomeric feature of series S1 was dependent on the end-capper concentration, 1,1,3,3- tetramethyldisiloxane while series S2 was dependent on the amount of phenyl group of octaphenylcyclotetrasiloxane (P4) employed during its synthesis. FTIR and NMR was used to confirm the functional group of HTP and completion of the hydrosilylation reaction.
format	Thesis
qualification_level	Master's degree
author	Looi, Yien Tyng
author_facet	Looi, Yien Tyng
author_sort	Looi, Yien Tyng
title	Synthesis And Properties Of Highly Cross-Linked Polysiloxane For LED Encapsulant
title_short	Synthesis And Properties Of Highly Cross-Linked Polysiloxane For LED Encapsulant
title_full	Synthesis And Properties Of Highly Cross-Linked Polysiloxane For LED Encapsulant
title_fullStr	Synthesis And Properties Of Highly Cross-Linked Polysiloxane For LED Encapsulant
title_full_unstemmed	Synthesis And Properties Of Highly Cross-Linked Polysiloxane For LED Encapsulant
title_sort	synthesis and properties of highly cross-linked polysiloxane for led encapsulant
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Kejuteraan Bahan & Sumber Mineral
publishDate	2012
url	http://eprints.usm.my/44829/1/LOOI%20YIEN%20TYNG.pdf
_version_	1747821407297863680

Synthesis And Properties Of Highly Cross-Linked Polysiloxane For LED Encapsulant

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