International Journal of Polymer Science / 2012 / Article / Tab 2

Research Article

Polymerization of Phenylacetylene-Based Monodendrons with Alkoxy Peripheral Groups and Oxygen/Nitrogen Permeation Behavior of Their Membranes

Table 2

Column structure of polydendrons.

PolymersGeneration numberDensitya (g/cm3)2θ b (deg)d spacingc (Å)Column diameter
WAXSd (Å)Calcde (Å)

poly(HG1PA)f11.0683.130.535.243.0
poly(HG0PA)f01.0623.328.733.136.7

a Determined by floating method containing error of ±0.005.
bCrystalline peak of the wide-angle X-ray scattering (WAXS) of the polymers.
c Estimated from 2θ.
d Estimated from d (column diameter = 2d/3).
e Estimated from molecular modeling, which was performed as described in text. (The molecular modeling was performed on the assumption of a fully extended conformation for side-chain monodendronsn and distorted cis-transoid main chain conformation (dihedral angle = 130 deg), as described in [7].)

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