Cover Image

Radiation grafting of fuctional polymers

Non-migratory active food packaging has the potential to reduce the current food crisis which involves production, quality and safety aspects for consumption. Currently, the food industry is using added preservatives which possibly contain harmful ingredients that will enable food to last longer. Be...

Full description

Saved in:
Bibliographic Details
Main Author: Kathrina Nirmala, Manoharan
Format: Undergraduates Project Papers
Language:English
Published: 2013
Subjects:
TP Chemical technology
Online Access:http://umpir.ump.edu.my/id/eprint/9194/1/cd8688.pdf
http://umpir.ump.edu.my/id/eprint/9194/
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.ump.umpir.9194
record_format eprints
spelling my.ump.umpir.91942021-07-21T03:24:39Z http://umpir.ump.edu.my/id/eprint/9194/ Radiation grafting of fuctional polymers Kathrina Nirmala, Manoharan TP Chemical technology Non-migratory active food packaging has the potential to reduce the current food crisis which involves production, quality and safety aspects for consumption. Currently, the food industry is using added preservatives which possibly contain harmful ingredients that will enable food to last longer. Besides that, active packaging like cans or plastic contains wordings on the surface that can migrate into food product over a period of time hence it can be detrimental for the health of consumer. This work aims to prepare a film surface that will be used as packaging with non-migratory antimicrobial properties via gamma radiation grafting. Using a hydrophilic, biocompatible polymer polyethylene glycol diacrylate (PEGDA) as tether molecule. In this study, PEGDA was grafted onto the surface of polypropylene (PP) films which were irradiated using gamma ray with dosages ranging from 10kGy, 15kGy, 20kGy, 25kGy and 30kGy. The concentration for polymer solution is between 1% to 20%. In this study, N,N-dimethylaminoethyl methacrylate (DMAEMA) was used as an antimicrobial agent. It was later immobilized on the PP film surface which hve been grafted with PEGDA by covalent attachment. Grafting was done by dipping the irradiated films in the polymeric solution for two hours in water bath at 70oC while purging with nitrogen. The weight of the films before and after grafting were taken and calculated using degree of grafting. After that, the films were characterized by using attenuated total reflectance Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and tensile testing machine. The result showed that a high degree of grafting of more than 10% was achieved when the total radiation dose was lower than 50kGy and the concentration for monomer solution of PEGDA and DMAEMA is kept below 20% within optimum condition 2013-12 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/9194/1/cd8688.pdf Kathrina Nirmala, Manoharan (2013) Radiation grafting of fuctional polymers. Faculty of Chemical & Natural Resources Engineering, Universiti Malaysia Pahang.
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Kathrina Nirmala, Manoharan
Radiation grafting of fuctional polymers
description Non-migratory active food packaging has the potential to reduce the current food crisis which involves production, quality and safety aspects for consumption. Currently, the food industry is using added preservatives which possibly contain harmful ingredients that will enable food to last longer. Besides that, active packaging like cans or plastic contains wordings on the surface that can migrate into food product over a period of time hence it can be detrimental for the health of consumer. This work aims to prepare a film surface that will be used as packaging with non-migratory antimicrobial properties via gamma radiation grafting. Using a hydrophilic, biocompatible polymer polyethylene glycol diacrylate (PEGDA) as tether molecule. In this study, PEGDA was grafted onto the surface of polypropylene (PP) films which were irradiated using gamma ray with dosages ranging from 10kGy, 15kGy, 20kGy, 25kGy and 30kGy. The concentration for polymer solution is between 1% to 20%. In this study, N,N-dimethylaminoethyl methacrylate (DMAEMA) was used as an antimicrobial agent. It was later immobilized on the PP film surface which hve been grafted with PEGDA by covalent attachment. Grafting was done by dipping the irradiated films in the polymeric solution for two hours in water bath at 70oC while purging with nitrogen. The weight of the films before and after grafting were taken and calculated using degree of grafting. After that, the films were characterized by using attenuated total reflectance Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and tensile testing machine. The result showed that a high degree of grafting of more than 10% was achieved when the total radiation dose was lower than 50kGy and the concentration for monomer solution of PEGDA and DMAEMA is kept below 20% within optimum condition
format Undergraduates Project Papers
author Kathrina Nirmala, Manoharan
author_facet Kathrina Nirmala, Manoharan
author_sort Kathrina Nirmala, Manoharan
title Radiation grafting of fuctional polymers
title_short Radiation grafting of fuctional polymers
title_full Radiation grafting of fuctional polymers
title_fullStr Radiation grafting of fuctional polymers
title_full_unstemmed Radiation grafting of fuctional polymers
title_sort radiation grafting of fuctional polymers
publishDate 2013
url http://umpir.ump.edu.my/id/eprint/9194/1/cd8688.pdf
http://umpir.ump.edu.my/id/eprint/9194/
_version_ 1706957193028304896
score 13.211869

Similar Items