POLYBENZYL METHACRYLATE

Subramanian [18] has used gas chromatography-mass spectrometry to study the photodecomposition products such as benzaldehyde, a-hydroxyacetophenone, phenyl glycol, a-methoxyacetophenone, and a-henzyloxyacetophenone produced upon UV irradiation of polystyrene peroxide. Diaz and co-workers [19] carried out similar studies on polybenzyl methacrylates and polybenzyl acrylates. 

Time of flight static secondary ion mass spectroscopy (SSIMS) has been applied to perfluorinated polymers, polystyrene, polyacylacrylates (including poly cyclo-hexylmethacrylate, polybenzyl methacrylate, polyphenyl methacrylate, poly n-hexyl methacrylate, poly n-butyl methacrylate, polymethylmethacrylate, poly n-propyl methacrylate, polyisopropyl methacrylate and poly secbutyl methacrylate). Blends of polystyrene and polyvinyl chloride, bisphenol A and polystyrene, polycarbonate and polystyrene and tetramethyl bisphenol A and polycarbonate have also been studied by this technique. 

In this section we first discuss two synthetic polymers, poly(methyl methacrylate) and polypropylene, to illustrate the proton and C NMR spectroscopy of macromolecules. The spectra of protein molecules will be discussed in later sections. We then describe deuterium NMR spectroscopy by illustrating the characteristic features of the motion in the polyethylene molecule. The motion is caused by a change in thermal energy. Finally, we describe polybenzyl-y-glutamate as an example of two-dimensional NMR spectroscopy. 

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