Acrylamides, telechelic

FUNCTIONAL, TELECHELIC POLYMERS DERIVED FROM REACTIONS OF NUCLEOPHILIC OLIGOMERS AND ALKEYNL AZLACTONES, PART I TELECHELIC ACRYLAMIDES DERIVED FROM REACTIONS OF ALKEYNL AZLACTONES AND AMINE-TERMINATED OLIGOIERS ... 

A complete listing of reactants, physical properties, and predicted and observed unsaturation equivalent weights for the telechelic (meth)acrylamide-functional oligomers is contained in Table 1. 

Both in Chapter 10 and this chapter, we have described new techniques for the preparation of functional, telechelic oligomers and polymers based on reactions of alkenyl azlactones (Scheme 10). Nucleophilic ring-opening reactions can be utilized for the preparation of fluid acrylamides for potential use in a variety of free radical curable resin systems whereas, Michael addition leads to fluid multiazlactones which may be subsequently cured via nucleophilic addition. Further investigations concerning the chemistry and practical utility of these novel resin systems are ongoing in our laboratories. 

Poly(oxazoline) telechelics with hydroxyl, amino, triphenylphosphonium, piperidine, pyrrole, styryl, acrylamide, acrylate, methacrylate, and butadiene end groups were successfully synthesized (377-387). Reaction of methyltosylate (MeOTs) with hisoxazohnes gives rise to the formation of his(oxazoluiium tosy-late) (387). Living polymerization of monofunctional oxazohnes having propagating species at hoth ends can he initiated by the addition of the monomer. 

Mercaptopropionic acid can be used as a transfer agent for preparing telechelics from acrylamide and W-vinylpyrrolidone (541). 

Okada, Y., Tanaka, F., Kujawa, P., and Winnik, F.M., Unified model of association-induced lower critical solution temperature phase separation and its application to solutions of telechelic poly(ethylene oxide) and of telechelic poly(Y-isopropyl-acrylamide) in water,/. Chem. Phys., 125, 244902, 2006. 

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