Abstract
The local dynamics of poly(2-vinylnaphthalene) (P2VN) have been investigated using femtosecond transient grating optical Kerr effect measurements. In solid P2VN, a single exponential 140-fs decay is observed. This decay is attributed to librational relaxation of the naphthyl side groups. In P2VN/CCl 4 solution, besides the librational decay, there exist two slower orientational relaxation components. These decays are temperature independent in the range -3 to +55 o C, although the bulk sheer viscosity of the solution and the viscosity of pure CCl 4 change considerably
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