%0 Journal Article %J Macromolecules %D 2007 %T Hydrogen bonding in trivinyl monomers: implications for inclusion complexation and polymerization %A Satav, Sunita S. %A Karmalkar, Rohini N. %A Kulkarni, Mohan G. %A Mulpuri, Nagaraju %A Sastry, G. Narahari %X

Trimethylolpropane trimethacrylate (TMPTMA) formed a 1:2 inclusion complex (IC) with beta-cyclodextrin (beta-CD). Polymerization of the complex resulted in a soluble, linear polymer containing two pendant unsaturations per repeat unit since the methacryloyl groups included in the beta-CD cavity did not react with the growing radical chain. Trimethylolpropane triacrylate (TMPTA) formed a 1:1 complex with beta-CD. Yet a soluble polymer containing two pendant unsaturations per repeat unit was obtained. Computational analysis confirmed that in TMPTA hydrogen bonding between C-H center dot center dot center dot O=C brings two acryloyl groups in close vicinity of one another. As a result, both acryloyl groups were included in the same beta-CD cavity. Trimethylolpropane diacrylate 4-vinylbenzoate (TMPDAVB) once again formed 1:2 IC as a result of disruption of hydrogen bonds between two acryloyl groups. The study highlights that an understanding of the composition of the IC is more important than its stoichiometry alone.

%B Macromolecules %I AMER CHEMICAL SOC %C 1155 16TH ST, NW, WASHINGTON, DC 20036 USA %V 40 %P 1824-1830 %8 MAR %G eng %N 6 %9 Article %3 Foreign %4 5.583 %R 10.1021/ma062397i