(DP), and a Precision 2 angle light scattering detector (LS). The light scattering was

collected at a 15-degree angle, and the three in-line detectors were operated in series in

the order of LS-DRI-DP. The chromotography was performed at 45 C using two Waters

Styragel HR-5E columns (10 microns PD, 7.8 mm ID, 300 mm length) with HPLC grade

tetrahydrofuran (THF) as the mobile phase at a flow rate of 1.0 mL/minute. Injections

were made at 0.05-0.07 % weight/volume concentrations of the samples using a 322.5 [tl

injection volume. In the case of universal calibration, retention times were calibrated

against narrow molecular weight polystyrene standards (Polymer Laboratories; Amherst,

MA). All standards were selected to produce Mp or Mw values well beyond the expected

polymer's range. The Precision LS was calibrated using narrow polystyrene standard

having an Mw = 65,500 g/mol.

 Differential scanning calorimetry (DSC) was performed using a Perkin-Elmer

DSC-7 with a controlled cooling accessory (CCA-7) at a heating rate of 10 C/min using

indium and p-nitroroluene as calibration standards. Heats of fusion were referenced

against indium. The samples were scanned three times to remove recrystallization

differences between the samples. The results reported came from the third or clearest

scan. The results are listed in tabular form as well as within the text as Tm (melting peak)

and Tg (glass transition).

 Low and High-resolution mass spectral (LRMS and HRMS) data were obtained on

a Finnegan 4500 gas chromatograph/mass spectrometer using the electron ionization (EI)

mode. Elemental analyses were carried out by Atlantic Microlabs Inc., Norcross, GA.