ISSN:
0887-624X
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The preparation of poly[3,3′-bis(azidomethyl)oxetane-b-3-nitratomethyl-3′-methyloxetane-b-3,3′-bis(azidomethyl)oxetane], BAMO-NMMO-BAMO triblock copolymer, was attempted by using p-bis(α,α-dimethylchloromethyl)benzene (p-DCC) with silver hexafluoroantimonate (AgSbF6) to initiate the sequential polymerization of NMMO and BAMO. The analysis of the polymer by different techniques such as nuclear magnetic resonance (NMR), infrared (IR) spectroscopy, and differential scanning calorimetry (DSC) show that the structure of the polymer is composed of a two-phase domain structure of amorphous NMMO phases and crystalline BAMO phase. The molecular weight distribution of the polymer, determined by gel permeation chromatography-low angle laser light scattering (GPC-LALLS) was fairly narrow which indicates that the chains could be propagating by a quasi-living ionic mechanism. Thermogravimetric analysis (TGA) shows that the decomposition temperature of the polymer is about 204°C, which indicates good thermal stability of the polymer.
Additional Material:
10 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pola.1990.080280912
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