Pressure sensitive adhesives based on oleic acid Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/vh53wz292

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • Existing pressure sensitive adhesives (PSAs) are mostly based on petrochemicals. In this study, a novel PSA based on a renewable material, methyl oleate, was prepared and characterized. Methyl oleate was first epoxidized to form epoxidized methyl oleate that was subsequently hydrolyzed and acidified to form epoxidized oleic acid (EOA) which is an AB-type monomer containing both a carboxylic acid group (A) and an epoxy group (B). Various methods for the preparation of EOA with high purity were extensively studied. EOA was homopolymerized in the presence of a catalyst to generate a polyester that could serve as a PSA. Various catalysts were investigated for their effectiveness on the homopolymerization, and chromium (III) tris(acetylacetonate) was found to be the most effective catalyst. Effects of the EOA purity on the PSA properties of the resulting polyesters were investigated in detail; the EOA purity of at least 97% was found to be required for the preparation of the PSA with superior properties. The crosslinking of the polyesters with very small amount of crosslinking agents was able to further improve the overall properties, especially the aging resistance of the resulting PSAs. Among various crosslinking agents investigated, polymeric methylene diphenyl diisocyanate was the most effective in improvement of the PSA properties. The PSAs were evaluated for their peel strength, tack force, shear resistance, and aging resistance. The PSAs were characterized for their viscoelastic properties, thermal properties, thermal stability, and chemical structures.  
Resource Type
Date Available
Date Copyright
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Committee Member
Academic Affiliation
Non-Academic Affiliation
Keyword
Subject
Rights Statement
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Submitted by Yili Wu (wuyi@onid.orst.edu) on 2014-01-18T00:04:17Z No. of bitstreams: 1 WuYili2014.pdf: 1851016 bytes, checksum: 3127e0aa4119f1ee550cbe2f201e279c (MD5)
  • description.provenance : Made available in DSpace on 2014-01-23T22:18:23Z (GMT). No. of bitstreams: 1 WuYili2014.pdf: 1851016 bytes, checksum: 3127e0aa4119f1ee550cbe2f201e279c (MD5) Previous issue date: 2014-01-10
  • description.provenance : Approved for entry into archive by Julie Kurtz(julie.kurtz@oregonstate.edu) on 2014-01-23T18:10:45Z (GMT) No. of bitstreams: 1 WuYili2014.pdf: 1851016 bytes, checksum: 3127e0aa4119f1ee550cbe2f201e279c (MD5)
  • description.provenance : Approved for entry into archive by Laura Wilson(laura.wilson@oregonstate.edu) on 2014-01-23T22:18:23Z (GMT) No. of bitstreams: 1 WuYili2014.pdf: 1851016 bytes, checksum: 3127e0aa4119f1ee550cbe2f201e279c (MD5)

Relationships

Parents:

This work has no parents.

Last modified

Downloadable Content

Download PDF

Items