Oligomerization of Substituted Phenyl Glycidyl Ethers with Tertiary Amine
作者:
Yoshio Tanaka,
Masao Tomio,
Hiroshi Kakiuchi,
期刊:
Journal of Macromolecular Science: Part A - Chemistry
(Taylor Available online 1967)
卷期:
Volume 1,
issue 3
页码: 471-491
ISSN:0022-233X
年代: 1967
DOI:10.1080/10601326708053984
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The oligomerization of substituted phenyl glycidyl ethers was studied kinetically in the presence of dimethylbenzylamine using toluene or dioxane as a solvent. The infrared spectra of the resultant oligomers suggest that the reaction products have the internal carbon-carbon double-bond un-saturation, which is confirmed by the catalytic hydrogenation. The molecular weights of the oligomers also suggest that γ-phenoxy allyl alcohol produced by the initial reaction step, in which the γ-proton of phenyl glycidyl ether is attracted by a base, amine, reacts with other phenyl glycidyl ether and thus proceeds further, yielding the oligomer. The value of the reaction constant ρ is obtained positive for this reaction, which indicates that electron-withdrawing substituents of phenyl gylcidyl ethers increase the rate of oligomerization. A kinetic analysis shows that the proposed reaction sequence accounts for all the characteristics of the polymerization including sigmoidal shapes of monomer consumption curves, reaction rates, and induction periods.
点击下载:
PDF (836KB)
返 回