13C NMR SPECTROSCOPIC INVESTIGATION OF VARIOUS METHODS OF MODIFYING POLYETHYLENE GLYCOL MALEATE-FUMARATE WITH ROSIN.

被引:0
|
作者
Bulai, A.Kh. [1 ]
Slonim, I.Ya. [1 ]
Urman, Ya.G. [1 ]
Tsvetkova, O.S. [1 ]
Mikhailova, Z.V. [1 ]
机构
[1] Scientific & Production Div of, 'Plastmassy', USSR, Scientific & Production Div of 'Plastmassy', USSR
来源
Polymer science USSR | 1985年 / 27卷 / 09期
关键词
NUCLEAR MAGNETIC RESONANCE - Applications - POLYESTERS - Synthesis - POLYMERS - Spectroscopic Analysis - SPECTROSCOPY - Applications;
D O I
10.1016/0032-3950(85)90502-7
中图分类号
学科分类号
摘要
Carbon-13 NMR spectroscopy has been used to investigate reaction mixtures formed with various methods of modifying polyethylene glycol maleate-fumarate with rosin. The effectiveness of these methods of synthesis has been analysed comparatively. It has been shown that when the rosin is added to the previously synthesized oligoester, the time necessary for the complete introduction of the modifying component into the polyester chain is less than that when all the components are introduced simultaneously but the probability of forming crosslinked structures is greater.
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页码:2173 / 2182
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