Novel poly(alkyd-urethane)s from vegetable oils: synthesis and properties

Triglycerides of palm (Elaeis guineensis) oil, soy (Glycine max) oil and sunflower (Helianthus annuus) oil were converted to monoglycerides by glycerolysis process. The monoglycerides derived from the different oils were reacted with phthalic anhydride at 2:1 monoglyceride-to-phthalic anhydride rati...

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Main Authors: Ling, Jem Shan, Mohammed, Issam Ahmed, Gazalli, Arniza, Khairuddean, Melati
Format: Article
Published: Elsevier 2014
Online Access:http://psasir.upm.edu.my/id/eprint/34675/
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author Ling, Jem Shan
Mohammed, Issam Ahmed
Gazalli, Arniza
Khairuddean, Melati
author_facet Ling, Jem Shan
Mohammed, Issam Ahmed
Gazalli, Arniza
Khairuddean, Melati
author_sort Ling, Jem Shan
building UPM Institutional Repository
collection Online Access
description Triglycerides of palm (Elaeis guineensis) oil, soy (Glycine max) oil and sunflower (Helianthus annuus) oil were converted to monoglycerides by glycerolysis process. The monoglycerides derived from the different oils were reacted with phthalic anhydride at 2:1 monoglyceride-to-phthalic anhydride ratio to obtain novel polyols called alkyd diols. The polyols were reacted with 4,4′-methylenediphenyldiisocyanate (MDI) to produce five novel poly(alkyd-urethane)s (PAU), namely palm oil based poly(alkyd-urethane) (POPAU), soy oil based poly(alkyd-urethane) (SOPAU), sunflower oil based poly(alkyd-urethane) (SFPAU), palm-soy oils based poly(alkyd-urethane) (POSOPAU) and palm-sunflower oils based poly(alkyd-urethane) (POSFPAU). The successful synthesis of the monoglycerides, alkyd diols and poly(alkyd-urethane)s were confirmed by FTIR, 1H NMR, 13C NMR spectroscopy and their morphology were evaluated by scanning electron microscopy (SEM). Further analyses included viscosity, solubility, iodine number testing, gel content, drying time test, thermogravimetric analysis (TGA), crosshatch adhesion tests, impact strength, pencil hardness, chemical and water resistance. Palm oil poly(alkyd-urethane) showed good thermal stability with only 5% weight loss temperature in nitrogen at 270 °C. Improvements in coating performance after blending with sunflower oil or soy oil based alkyd-diols were also observed.
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spelling upm-346752015-12-18T01:32:47Z http://psasir.upm.edu.my/id/eprint/34675/ Novel poly(alkyd-urethane)s from vegetable oils: synthesis and properties Ling, Jem Shan Mohammed, Issam Ahmed Gazalli, Arniza Khairuddean, Melati Triglycerides of palm (Elaeis guineensis) oil, soy (Glycine max) oil and sunflower (Helianthus annuus) oil were converted to monoglycerides by glycerolysis process. The monoglycerides derived from the different oils were reacted with phthalic anhydride at 2:1 monoglyceride-to-phthalic anhydride ratio to obtain novel polyols called alkyd diols. The polyols were reacted with 4,4′-methylenediphenyldiisocyanate (MDI) to produce five novel poly(alkyd-urethane)s (PAU), namely palm oil based poly(alkyd-urethane) (POPAU), soy oil based poly(alkyd-urethane) (SOPAU), sunflower oil based poly(alkyd-urethane) (SFPAU), palm-soy oils based poly(alkyd-urethane) (POSOPAU) and palm-sunflower oils based poly(alkyd-urethane) (POSFPAU). The successful synthesis of the monoglycerides, alkyd diols and poly(alkyd-urethane)s were confirmed by FTIR, 1H NMR, 13C NMR spectroscopy and their morphology were evaluated by scanning electron microscopy (SEM). Further analyses included viscosity, solubility, iodine number testing, gel content, drying time test, thermogravimetric analysis (TGA), crosshatch adhesion tests, impact strength, pencil hardness, chemical and water resistance. Palm oil poly(alkyd-urethane) showed good thermal stability with only 5% weight loss temperature in nitrogen at 270 °C. Improvements in coating performance after blending with sunflower oil or soy oil based alkyd-diols were also observed. Elsevier 2014-01 Article PeerReviewed Ling, Jem Shan and Mohammed, Issam Ahmed and Gazalli, Arniza and Khairuddean, Melati (2014) Novel poly(alkyd-urethane)s from vegetable oils: synthesis and properties. Industrial Crops and Products, 52. pp. 74-84. ISSN 0926-6690; ESSN: 1872-633X http://www.sciencedirect.com/science/article/pii/S0926669013005517 10.1016/j.indcrop.2013.10.002
spellingShingle Ling, Jem Shan
Mohammed, Issam Ahmed
Gazalli, Arniza
Khairuddean, Melati
Novel poly(alkyd-urethane)s from vegetable oils: synthesis and properties
title Novel poly(alkyd-urethane)s from vegetable oils: synthesis and properties
title_full Novel poly(alkyd-urethane)s from vegetable oils: synthesis and properties
title_fullStr Novel poly(alkyd-urethane)s from vegetable oils: synthesis and properties
title_full_unstemmed Novel poly(alkyd-urethane)s from vegetable oils: synthesis and properties
title_short Novel poly(alkyd-urethane)s from vegetable oils: synthesis and properties
title_sort novel poly(alkyd-urethane)s from vegetable oils: synthesis and properties
url http://psasir.upm.edu.my/id/eprint/34675/
http://psasir.upm.edu.my/id/eprint/34675/
http://psasir.upm.edu.my/id/eprint/34675/