POLYMERIZATION PHOTOINITIATED BY CARBONYL-COMPOUNDS .9. METHYL-METHACRYLATE POLYMERIZATION PHOTOINITIATED BY ANTHRAQUINONE IN PRESENCE OF TRIETHYLAMINE

被引：12
作者：
ENCINAS, MV
MAJMUD, C
LISSI, EA
机构：
[1] Departamento de Química, Facultad de Ciencias, Universidad de Santiago, Santiago, 5659, Casilla
来源：
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 1990年 / 28卷 / 09期
关键词：
D O I：
10.1002/pola.1990.080280919
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Addition of triethylamine (TEA) notably increases the efficiency of anthraquinone (AQ) as photoinitiator of methyl methacrylate (MMA) free radical polymerization in nonpolar solvents. On the other hand, when alcohols or acetonitrile are employed as solvents the addition of TEA decreases the AQ photoinitiated polymerization rate. The polymerization efficiency measured in nonpolar solvents decreases when the MMA concentration increases. These results are explained in terms of quenching of the AQ‐TEA charge transfer complex by MMA. This conclusion is supported by the decrease in AQ photoconsumption and AQH2 formation produced by the monomer addition. Copyright © 1990 John Wiley & Sons, Inc.
引用
收藏
页码：2465 / 2474
页数：10
相关论文
共 30 条
[1]   PHOTOCHEMISTRY OF CARBONYL PHOTOINITIATORS - PHOTOPOLYMERIZATION, FLASH-PHOTOLYSIS AND SPECTROSCOPIC STUDY [J].
ALLEN, NS ;
CATALINA, F ;
GREEN, PN ;
GREEN, WA .
EUROPEAN POLYMER JOURNAL, 1986, 22 (01) :49-56
[2]  
AMIRZADEH G, 1981, MAKROMOL CHEM, V182, P2821
[3]   NANOSECOND TRANSIENT PROCESSES IN THE TRIETHYLAMINE QUENCHING OF BENZOPHENONE TRIPLETS IN AQUEOUS ALKALINE MEDIA - SUBSTITUENT EFFECT, KETYL RADICAL DEPROTONATION, AND SECONDARY PHOTOREDUCTION KINETICS [J].
BHATTACHARYYA, K ;
DAS, PK .
JOURNAL OF PHYSICAL CHEMISTRY, 1986, 90 (17) :3987-3993
[4]   EXCIPLEX QUENCHING - GEOMETRIC AND ELECTRONIC REQUIREMENTS [J].
CALDWELL, RA ;
CREED, D ;
OHTA, H .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1975, 97 (11) :3246-3247
[5]   STUDIES ON SOME INTERMEDIATES AND PRODUCTS OF PHOTOREDUCTION OF 9,10-ANTHRAQUINONE [J].
CARLSON, SA ;
HERCULES, DM .
PHOTOCHEMISTRY AND PHOTOBIOLOGY, 1973, 17 (02) :123-131
[6]   PHOTOREDUCTION BY AMINES [J].
COHEN, SG ;
PAROLA, A ;
PARSONS, GH .
CHEMICAL REVIEWS, 1973, 73 (02) :141-161
[7]   PROPERTIES OF DILUTE POLYMER SOLUTIONS .2. LIGHT SCATTERING AND VISCOMETRIC PROPERTIES OF SOLUTIONS OF CONVENTIONAL POLYMETHYL METHACRYLATE [J].
COHNGINSBERG, E ;
FOX, TG ;
MASON, HF .
POLYMER, 1962, 3 (01) :97-109
[8]   ROLE OF A SINGLET EXCIPLEX IN PHOTOCYCLOADDITION OF PHENANTHRENE TO DIMETHYL FUMARATE [J].
CREED, D ;
CALDWELL, RA .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1974, 96 (23) :7369-7371
[9]  
CREED D, 1977, J AM CHEM SOC, V99, P276
[10]   METHYL-METHACRYLATE POLYMERIZATION PHOTOINITIATED BY PYRENE IN THE PRESENCE OF TRIETHYLAMINE [J].
ENCINAS, MV ;
MAJMUD, C ;
GARRIDO, J ;
LISSI, EA .
MACROMOLECULES, 1989, 22 (02) :563-566
123