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Diels-alder trapping of photochemically generated dienes with acrylic esters: a novel approach to photocured polymer film development
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Meador, Mary Ann Smith, Deedee Ilhan, Faysal Meador, Michael A. Tyson, Daniel S. |
| Copyright Year | 2004 |
| Description | Diels-Alder cycloadditions have often been utilized in polymer synthesis as an alternative to condensation reactions. In our earlier efforts, we developed a new method for the preparation of linear aromatic polyimides, which employs o-quionodimethanes (o-QDMs), generated by a well-known photochemical reaction: the photoenolization of o-methylphenyl ketones. Photolysis of o-methylbenzophenone 1 produces hydroxy-o-quino- diemthane 2, which can be trapped with dienophiles, such as dimethyl acetylenedicarboxylate, to efficiently yield the corresponding cycloadduct (Scheme 1). Here we extend this approach to a novel photocuring process for development of polymer films. We synthesized a series of molecules with multi o-mehtylphenyl ketone functionalities. We further investigated these molecules as photoreactive monomers to obtain polyester films through Diels-Alder cycloadditions. |
| File Size | 163442 |
| Page Count | 2 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20050123611 |
| Archival Resource Key | ark:/13960/t7fr4v23j |
| Language | English |
| Publisher Date | 2004-01-01 |
| Access Restriction | Open |
| Subject Keyword | Inorganic, Organic And Physical Chemistry Diels-alder Reactions Photochemical Reactions Ketones Esters Synthesis Chemistry Polymeric Films Monomers Molecules Photolysis Acrylic Resins Polyesters Irradiation Methyl Compounds Dienes Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
