The development of high-load, ROMP-derived oligomeric scavengers with tunable properties

The works reported herein are the scavenging applications of various oligomers generated via ring-opening metathesis (ROM) polymerization of functionalized norbornene-tagged monomers using well-defined ruthenium-based catalysts. These norbornene derivatives were synthesized via Diels-Alder reactions of cyclic dienes with various dienophiles. Several salient, tunable properties of these polymers such as load, solubility, size, and shape will be discussed. Finally, each polymer can be classified as either an electrophilic or a nucleophilic scavenger, dependent upon the functional group attached to the polymer periphery. Electrophilic scavengers, such as oligomeric sulfonyl chloride (OSC), oligomeric bisacid chloride (OBAC), and oligomeric phosphonyl dichloride (OPC), are capable of binding to various nucleophiles with differing affinities. On the opposing end of the continuum are nucleophilic scavengers, such as oligomeric mono-amine (OMAm) and oligomeric bis-amine (OBAm), possessing functionality compatible to scavenge electrophiles.*; *Please refer to dissertation for diagram.