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Glassy epoxy polymers free volume

It has been established that the structure of an amorphous polymer is fractal with a fractal dimension (df) (2 < df < 3). Therefore we ought to expect, that the fluctuation free volume should also have fractal properties. The purpose of this chapter is to investigate the fractality of the fluctuation free volume in glassy polymers and epoxy polymers are... [Pg.387]

Figure 4.2. (a) The temperature dependence of free volume in an amorphous polymer (b) a typical TMA experiment of a cured epoxy thermoset (probe displacement is proportional to expansion) for determination of T, symbols and a, represent glassy and rubbery CLTEs, respectively [Turi et al. (1988) reprinted with permission of VCH Publishers]. [Pg.325]

Long FA, Richman D (1960) Concentration gradients for diffusion of vapors in glassy polymers and their relation to time dependent diffusion phenomena. J Am Chem Soc 82(3) 513-519 Lundgren J, Gudmundson P (1999) Moisture absorption in glass-fibre/epoxy laminates with transvCTse matrix cracks. Cranpos Sci Technol 59(13) 1983-1991 Macedo PB, Litovitz TA (1965) On the relative roles of free volume and activation energy in the viscosity of liquids. J Chem Phys 42(1) 245... [Pg.94]

See other pages where Glassy epoxy polymers free volume is mentioned: [Pg.36]    [Pg.71]    [Pg.72]    [Pg.138]    [Pg.2]    [Pg.33]    [Pg.2734]    [Pg.324]    [Pg.256]    [Pg.268]    [Pg.3]    [Pg.298]   
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