Novel high molecular weight polymers based on palm oil

Kalita Harjyoti, . and Jayasooriyamu Anurad, . and Fernando Shashi, . and Chisholm Bret J., . Novel high molecular weight polymers based on palm oil. pp. 39-56. ISSN 1511-2780

Palm oil possesses on average about 1.8 double bonds per triglyceride. As a result of the relatively low level of unsaturation associated with palm oil the ability to produce useful thermoset materials is limited. As a means to overcome this limitation a novel palm oil-based monomer and polymer were produced. The monomer was produced by base-catalysed transesterification of palm oil with 2-(vinyloxy) ethanol. This monomer was subsequently polymerised using cationic polymerisation to produce a polymer with a number-average molecular weight of approximately 20 000 g mole-1. The cationic polymerisation process utilised enabled selective polymerisation through the vinyl ether groups. With this polymerisation process the unsaturation derived from the palm oil was preserved and utilised for crosslinking. For example the polymer produced was epoxidised and the epoxide groups subsequently ring-opened with methanol to produce a polymeric polyol. Due to the relatively higher number of hydroxyl groups per molecule associated with the palm oil-based polyvinyl ether polyol tough hard polyurethane coatings were produced that cured relatively quickly. Details related to monomer synthesis and characterisation polymer synthesis and characterisation polymer derivatisation and characterisation and thermoset network production and characterisation are presented.

Full text available from: Official URL: http://jopr.mpob.gov.my/novel-high-molecular-weigh...

Abstract

Palm oil possesses on average about 1.8 double bonds per triglyceride. As a result of the relatively low level of unsaturation associated with palm oil the ability to produce useful thermoset materials is limited. As a means to overcome this limitation a novel palm oil-based monomer and polymer were produced. The monomer was produced by base-catalysed transesterification of palm oil with 2-(vinyloxy) ethanol. This monomer was subsequently polymerised using cationic polymerisation to produce a polymer with a number-average molecular weight of approximately 20 000 g mole-1. The cationic polymerisation process utilised enabled selective polymerisation through the vinyl ether groups. With this polymerisation process the unsaturation derived from the palm oil was preserved and utilised for crosslinking. For example the polymer produced was epoxidised and the epoxide groups subsequently ring-opened with methanol to produce a polymeric polyol. Due to the relatively higher number of hydroxyl groups per molecule associated with the palm oil-based polyvinyl ether polyol tough hard polyurethane coatings were produced that cured relatively quickly. Details related to monomer synthesis and characterisation polymer synthesis and characterisation polymer derivatisation and characterisation and thermoset network production and characterisation are presented.

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Item Type:	Article
AGROVOC Term:	Palm oils
AGROVOC Term:	Plant oils
AGROVOC Term:	Polymers
AGROVOC Term:	Molecular weight
AGROVOC Term:	Chemical composition
AGROVOC Term:	Stirring
AGROVOC Term:	Heating
AGROVOC Term:	Soybean oil
AGROVOC Term:	Thermal properties
AGROVOC Term:	Calorimetry
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:28
URI:	http://webagris.upm.edu.my/id/eprint/24357

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