Effect of reaction temperatures on synthesis of poly(acrylamide-co-acrylic acid) grafted poly(styrene-co- methyl methacrylate) microgels

Poly(acrylamide-co-acrylic acid) grafted poly(styrene-co-methyl methacrylate) was synthesized through simultaneous crosslinking and graft copolymerization in the presence of N,N’-methylenebisacrylamide crosslinker and potassium persulphate initiator. The main objective of this research was to produc...

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Main Author:	Ahmad Rifa’I, Aqilah
Format:	Thesis
Language:	English
Published:	2017
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/id/eprint/77591/1/AqilahAhmadRifaiMFChE20171.pdf
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id	my-utm-ep.77591
record_format	uketd_dc
spelling	my-utm-ep.775912018-06-25T08:55:12Z Effect of reaction temperatures on synthesis of poly(acrylamide-co-acrylic acid) grafted poly(styrene-co- methyl methacrylate) microgels 2017-03 Ahmad Rifa’I, Aqilah TP Chemical technology Poly(acrylamide-co-acrylic acid) grafted poly(styrene-co-methyl methacrylate) was synthesized through simultaneous crosslinking and graft copolymerization in the presence of N,N’-methylenebisacrylamide crosslinker and potassium persulphate initiator. The main objective of this research was to produce a polymer microgel using emulsion polymerization process. Three different reaction temperatures, 60, 70 and 80 °C were used for the polymerization process. The chemical structure and the morphology of the polymer microgel were characterized using an attenuated total reflectance-Fourier transform infrared (ATR-FTIR) and scanning electron microscopy (SEM), respectively. Total solid content, water absorption and gel content were also analyzed. ATR-FTIR spectra of prepolymerization sample and microgel showed the appearance of a new peak in the range of 2800 - 2950 cm-1 and also a peak loss in the range of 970 - 1000 cm-1 after the polymerization process. SEM showed the surface formation of spherical microgel of around 100 to 600 nanometers. The total solid content (49.50 ± 1.43 %), water absorption (135.13 ± 1.90 %) and gel content (50.79 ± 1.23 %) at temperature 70 °C were higher which showed better colloidal properties compared to emulsion microgel at the temperature of 60 and 80 °C. Microgel produced at 60 °C polymerization temperature was used to coat two types of substrate, stainless steel and polymethyl methacrylate (plexiglass), however the coating was cracked and detached from the substrate after it dried. This microgel is suggested to be used as a coating for future study. 2017-03 Thesis http://eprints.utm.my/id/eprint/77591/ http://eprints.utm.my/id/eprint/77591/1/AqilahAhmadRifaiMFChE20171.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:105134 masters Universiti Teknologi Malaysia, Faculty of Chemical and Energy Engineering Faculty of Chemical and Energy Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Ahmad Rifa’I, Aqilah Effect of reaction temperatures on synthesis of poly(acrylamide-co-acrylic acid) grafted poly(styrene-co- methyl methacrylate) microgels
description	Poly(acrylamide-co-acrylic acid) grafted poly(styrene-co-methyl methacrylate) was synthesized through simultaneous crosslinking and graft copolymerization in the presence of N,N’-methylenebisacrylamide crosslinker and potassium persulphate initiator. The main objective of this research was to produce a polymer microgel using emulsion polymerization process. Three different reaction temperatures, 60, 70 and 80 °C were used for the polymerization process. The chemical structure and the morphology of the polymer microgel were characterized using an attenuated total reflectance-Fourier transform infrared (ATR-FTIR) and scanning electron microscopy (SEM), respectively. Total solid content, water absorption and gel content were also analyzed. ATR-FTIR spectra of prepolymerization sample and microgel showed the appearance of a new peak in the range of 2800 - 2950 cm-1 and also a peak loss in the range of 970 - 1000 cm-1 after the polymerization process. SEM showed the surface formation of spherical microgel of around 100 to 600 nanometers. The total solid content (49.50 ± 1.43 %), water absorption (135.13 ± 1.90 %) and gel content (50.79 ± 1.23 %) at temperature 70 °C were higher which showed better colloidal properties compared to emulsion microgel at the temperature of 60 and 80 °C. Microgel produced at 60 °C polymerization temperature was used to coat two types of substrate, stainless steel and polymethyl methacrylate (plexiglass), however the coating was cracked and detached from the substrate after it dried. This microgel is suggested to be used as a coating for future study.
format	Thesis
qualification_level	Master's degree
author	Ahmad Rifa’I, Aqilah
author_facet	Ahmad Rifa’I, Aqilah
author_sort	Ahmad Rifa’I, Aqilah
title	Effect of reaction temperatures on synthesis of poly(acrylamide-co-acrylic acid) grafted poly(styrene-co- methyl methacrylate) microgels
title_short	Effect of reaction temperatures on synthesis of poly(acrylamide-co-acrylic acid) grafted poly(styrene-co- methyl methacrylate) microgels
title_full	Effect of reaction temperatures on synthesis of poly(acrylamide-co-acrylic acid) grafted poly(styrene-co- methyl methacrylate) microgels
title_fullStr	Effect of reaction temperatures on synthesis of poly(acrylamide-co-acrylic acid) grafted poly(styrene-co- methyl methacrylate) microgels
title_full_unstemmed	Effect of reaction temperatures on synthesis of poly(acrylamide-co-acrylic acid) grafted poly(styrene-co- methyl methacrylate) microgels
title_sort	effect of reaction temperatures on synthesis of poly(acrylamide-co-acrylic acid) grafted poly(styrene-co- methyl methacrylate) microgels
granting_institution	Universiti Teknologi Malaysia, Faculty of Chemical and Energy Engineering
granting_department	Faculty of Chemical and Energy Engineering
publishDate	2017
url	http://eprints.utm.my/id/eprint/77591/1/AqilahAhmadRifaiMFChE20171.pdf
_version_	1747817784695324672

Effect of reaction temperatures on synthesis of poly(acrylamide-co-acrylic acid) grafted poly(styrene-co- methyl methacrylate) microgels

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