kpilogo shields

cpsm@kpi.ua
+38 044 204 8430

Polyesters from dimethyl terephthalate, ethylene glycol, poly(ethylene glycol) and 4,4’-bis(carbomethoxy)- stilbene were synthesized via a thermal transesterification reaction. The assignment of proton frequencies was facilitated by 2-D n.m.r. techniques. The presence of ethyl01 end groups and the occurrence of a cis to tram stilbene monomer isomerization were observed and are reported herein

Посилання на статтю:

Synthesis of polyesters from dimethyl terephthalate, ethylene glycol, poly(ethylene glycol) and 4,4’-bis( carbomethoxy)stiIbene, and characterization by ‘H and 2-D n.m.r. / Matthew E. Langer*, David Kwoh, Ferial Khorshahi and Arnold Jensen // Polymer. – 1992. – Vol 33. – P. 4862-4865.

Synthesis of polyesters from dimethyl terephthalate, ethylene glycol, poly(ethylene glycol) and 4,4’-bis( carbomethoxy)stiIbene, and characterization by ‘H and 2-D n.m.r. - Завантажити.