Novel block copolymers of bisphenol-A substituted polyacrylates prepared using atom transfer radical polymerization

POLY 465

Sheeja Bahulayan, chmsb@nus.edu.sg1, Pauline Ong, u0402485@nus.edu.sg1, Nurmawati M Hanafiah1, and Suresh Valiyaveettil, chmsv@nus.edu.sg2. (1) Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore, (2) Singapore-MIT Alliance, National University of Singapore, 3 Science Drive, Singapore 117543, Singapore
A new series of homopolymers of bisphenol - A substituted acrylates having pendant 2, 2-dimethyl-1, 3-dioxolane moieties and their block copolymers with t-butyl methacrylate were synthesized via atom transfer radical polymerization using ethyl-2-bromoisobutyrate as initiator and copper(1)bromide/N,N',N',N',N”-pentamethyl diethylenetriamine (PMDETA) or copper(1)chloride/ 1,1,4,7,10,10-hexamethyl-triethylenetetramine (HMTETA) as catalysts in toluene at 75 °C. The homopolymers and block polymers up on hydrolysis gave water soluble hydroxylated polymers. The morphological studies revealed that hydroxylated diblock copolymers forms spheres, rods or vesicles in aqueous solutions which has wide applications. All polymers were characterized using GPC, 1H NMR, 13C NMR, FT-IR, TGA and TEM. Morphological studies were done by TEM.
 

Multicompartment Micelles: Higher Order Self-Assembly of Block Copolymers
6:00 PM-8:00 PM, Tuesday, 12 September 2006 Moscone Center -- Hall D, Poster

Division of Polymer Chemistry

The 232nd ACS National Meeting, San Francisco, CA, September 10-14, 2006