Effect of Methyl Substitution on Polyhydroxyamine-linked Thioxanthones Photoinitiator

Abstract

Abstract: The effect of methyl substitution on the molecular conformation and photochemical properties of 2-(2-hydroxy-3-[bis(2-hydroxyethyl)amino]propoxy)thioxanthone(HAPTX) was investigated by¹HNMR, ¹³CNMR, UV absorption and fluorescence spectra. The two methyl groups at 1,3-position of thioxanthones may interact with 2-alkoxyl group through steric repulsion and lead to the photochemical properties of HAPTX with 1,3-dimethyl substitution different from others.

Key words: Thioxanthone, Photoinitiator, UV absorption, Fluorescence, Conformation

CLC Number:

O644.16

TrendMD:

YANG Jian-Wen, YANG Xiao-Mao, CHEN Yong-Lie . Effect of Methyl Substitution on Polyhydroxyamine-linked Thioxanthones Photoinitiator[J]. Chem. J. Chinese Universities, 1999, 20(12): 1965.

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Effect of Methyl Substitution on Polyhydroxyamine-linked Thioxanthones Photoinitiator

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