STUDIES IN THE POLYMERISATION OF VINYL ACETATE.

Simple item page
dc.contributor.authorFOLARANMI, FELICIA MODUPE
dc.date.accessioned2017-02-07T09:22:28Z
dc.date.available2017-02-07T09:22:28Z
dc.date.issued1979-06
dc.descriptionA Thesis presented to the Ahmadu Bello University in partial fulfillment for the Degree of MASTER OF SCIENCE IN POLYMER SCIENCE AND TECHNOLOGYen_US
dc.description.abstractThe emulsion polymerisation of vinyl acetate has been studied at 400C +/- 1 using benzoyl peroxide and ferrous iron as the initiator system. Three different emulsifying agents are used. The effect of emulsifying agent, its concentration and the time of polymerisation on the emulsion properties, the polymer yield and molecular weight have been investigated. The results show that the generalised theory of emulsion polymerisation applies to a limited extent to this system. The rate of polymerisation is constant between 0-80 percent polymerisation. The molecular weight decreases with time of polymerisation. This has been attributed to increasing rate of initiation with time. The effect of molecular weight on the tensile properties of the polymer film has been studied. The results show that polymer samples prepared with varying emulsifier concentration have narrower molecular weight distribution when compared to samples obtained at varying time of polymerisation and constant emulsifier concentration.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/8666
dc.language.isoenen_US
dc.subjectSTUDIES,en_US
dc.subjectPOLYMERISATION,en_US
dc.subjectVINYL ACETATE,en_US
dc.titleSTUDIES IN THE POLYMERISATION OF VINYL ACETATE.en_US
dc.typeThesisen_US
Files
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
STUDIES IN THE POLYMERISATION OF VINYL ACETATE.pdf
Size:
3.66 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.62 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
SCIENCE