Photoinitiated degradation of polystyrene in the presence of low-molecular organic compounds

被引：69

作者：

Kaczmarek, H ^{[1
]}

Kaminska, A ^{[1
]}

Swiatek, M ^{[1
]}

Sanyal, S ^{[1
]}

机构：

[1] Nicholas Copernicus Univ, Fac Chem, PL-87100 Torun, Poland

来源：

EUROPEAN POLYMER JOURNAL | 2000年 / 36卷 / 06期

关键词：

photodegradation; polystyrene; benzophenone; anthraquinone; benzoyl peroxide;

D O I：

10.1016/S0014-3057(99)00175-5

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The influence of low-molecular organic compounds such as benzophenone (BPh), anthraquinone (AQ) and benzoyl peroxide (BPo) on the phototransformations of polystyrene has been investigated. The viscometry, gravimetry, infrared and UV-vis spectroscopy has been used in these studies. The results indicate that additives applied accelerate and increase the efficiency of photodegradation, photodestruction and photo-oxidation processes in polystyrene but they hamper the photocrosslinking and formation of the double bonds in this polymer. In all these processes, BPh showed the greater activity as photoinitiator comparing to AQ and BPo. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：1167 / 1173

页数：7

共 42 条

[1]

ANDRUSHC.DA, 1972, VYSOKOMOL SOEDIN A, V14, P594

[2]

[Anonymous], 1987, MECH PHOTOPHYSICAL P

[3] PRIMARY PHOTOCHEMICAL PROCESSES IN AROMATIC MOLECULES .9. PHOTOCHEMISTRY OF BENZOPHENONE IN SOLUTION [J].

BECKETT, A ;

PORTER, G .

TRANSACTIONS OF THE FARADAY SOCIETY, 1963, 59 (489) :2038-&

[4] Further study of fluorinated derivatives of benzoyl peroxide as initiators of radical polymerizations: Kinetic chain lengths and related quantities [J].

Bevington, JC ;

Breuer, SW ;

Huckerby, TN ;

Hunt, BJ ;

Jones, R .

EUROPEAN POLYMER JOURNAL, 1998, 34 (3-4) :539-542

[5]

CHARLESBY A, 1960, ATOMIC RAD POLYM, P140

[6] Photochemical dimerization of esters of urocanic acid [J].

D'Auria, M ;

Racioppi, R .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 1998, 112 (2-3) :145-148

[7] PHOTOOXIDATION OF POLYMERS .1. QUANTITATIVE STUDY OF CHEMICAL-REACTIONS RESULTING FROM IRRADIATION OF POLYSTYRENE AT 253.7 NM IN PRESENCE OF OXYGEN [J].

GEUSKENS, G ;

BAEYENSVOLANT, D ;

DELAUNOIS, G ;

LUVINH, Q ;

PIRET, W ;

DAVID, C .

EUROPEAN POLYMER JOURNAL, 1978, 14 (04) :291-297

[8]

GEUSKENS G, 1982, DEV POLYM DEGRADATIO, V3, P143

[9] Graft copolymerization of methacrylic acid, acrylic acid and methyl acrylate onto styrene-butadiene block copolymer [J].

Jiang, DD ;

Wilkie, CA .

EUROPEAN POLYMER JOURNAL, 1998, 34 (07) :997-1006

[10] REACTIONS OF HYDROXYL (HO-CENTER-DOT) AND HYDROPEROXYL (HO2(CENTER-DOT)) RADICALS GENERATED CHEMICALLY AND PHOTOCHEMICALLY WITH POLY(ETHYLENE OXIDE) [J].

KACZMAREK, H ;

LINDEN, LA ;

RABEK, JF .

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 1995, 33 (06) :879-890

← 1 2 3 4 5 →