ISSN:
0449-2951
Schlagwort(e):
Chemistry
;
Polymer and Materials Science
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
,
Physik
Notizen:
Several linear polyesters and polyurethanes containing 2,3,4-tri-O-methylxylitol, or 2,3,4,6-tetra-O-methyl-D-glucitol, were prepared. Solution polymerization of either of the methylated derivatives with methylenebis(4-phenyl isocyanate) affords polyurethanes having molecular weights of about 30,000. Thermal polymerization of either methylated derivative with terephthaloyl chloride or mixtures of terephthaloyl chloride and sebacoyl chloride yields polyesters in the 4000-7000 molecular weight range. Films from these polyesters are brittle, with tensile strengths up to 32 kg./mm.2
Zusätzliches Material:
3 Tab.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/pol.1964.100020424
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