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3
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0028764178
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(1994)
Macromolecules
, vol.27
, pp. 3896
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Graessley, W.W.1
Krishnamoorti, R.2
Balsara, N.P.3
Butera, R.J.4
Fetters, L.J.5
Lohse, D.J.6
Schulz, D.N.7
Sissano, J.A.8
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39
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0042443723
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and references therein
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(1988)
Makromol. Chem
, vol.189
, pp. 2357
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57
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85034925968
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We note that Eq. (7.4) in Ref 6 used to calculate the athermal chi-parameter was incorrect because we mistakenly replaced the monomer hard core volume with the partial molar volume. However, the athermal chi-parameters obtained using Eq. (7.4) in Ref. 6 are very similar (identical to within a few percent) to those obtained using Eq. (3.3) in Table II in this paper. In fact, most of the chi-parameters remain unchanged to within our numerical accuracy. Hence, all the conclusions in Ref. 6 remain cor rect. The apparent insensitivity to whether the space filling hard core volume or thermodynamic molar volume is employed is itself an interesting finding
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61
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85034925098
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The difference between the integrated strength of the direct correlation function in the blend and melt is given by [formula omitted] and [formula omitted] Thus, the effective repulsive potential, [formula omitted] between the more flexible (stiffer) species is predicted to increase (decrease) upon blending. This trend is consistent with the signs of the species-dependent [formula omitted] of Eqs. (4.4) and (4.5), is intuitively sensible, and agrees with numerical SFC PRISM calculations of Sec. VI and Monte Carlo simulations of Ref. 14
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65
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85034924070
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Calculations are not performed for aspect ratios below this value. For negative bending energies below the value required to obtain the chain dimensions of a freely jointed chain [formula omitted] the SFC model is not very reliable. For very negative bending energies (small aspect ratios) the chain is artificially forced into being compact by reducing its conformational degrees of freedom. Also, if angles are restricted to be within a narrow range of values the intrachain overlaps will become very important. We have only applied corrections for the 1–3 intrachain overlaps as described in Ref. 30
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