Pressure sensitive adhesives (PSAs) are widely used in pressure sensitive labels, tapes, stamps, Post-it notes and many other products. At present, PSAs are mainly derived from petrochemicals that are not renewable and not sustainable. In this presentation, I will disclose our strategies of converting vegetable oils into superior PSAs. We discovered that different polyesters from derivatives of soybean oils such as epoxidized soybean oil could have superior PSA properties. The polyesters can be prepared from polymerization of epoxidized fatty acids such as epoxidized oleic acid, a bifunctional AB monomer containing a carboxylic acid group (A) and an epoxy group (B); polymerization of epoxidized soybean oils containing multiple epoxy groups and a dibasic acid such as dimer acids; or polymerization of epoxy resins containing two epoxy groups and a dibasic acid. Innovative methods for preparation of PSAs with superior properties have been successfully developed. The resulting PSAs have been characterized for their molecular structures, thermal stabilities, and viscoelastic properties. The peel strength, shear strength, tack, and aging stability of the resulting PSAs have also been evaluated and will be discussed in detail in this presentation. The relationships between chemical structures of derivatives of soybean oils, and PSA properties have been extensively investigated and will be present and discussed in detail.