Low temperature anomalies in polyvinyl alcohol photopolymers

被引:61
作者
Kityk, IV
Kasperczyk, J
Sahraoui, B
Yasinskii, MF
Holan, B
机构
[1] PEDAGOG UNIV,INST PHYS,PL-42201 CZESTOCHOWA,POLAND
[2] UNIV ANGERS,FAC SCI,LAB POMA,F-49045 ANGERS 01,FRANCE
[3] UKRANIAN ACAD PRINTING,UA-290024 LVOV,UKRAINE
[4] UNIV GENEVA,CH-1211 GENEVA 4,SWITZERLAND
关键词
polyvinyl alcohol photopolymers; aromatic rings; acoustooptical quality coefficient;
D O I
10.1016/S0032-3861(96)01084-1
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Acoustooptical parameters in a mixture of polyvinyl alcohol (PVA) polymers with modified polyvinyl alcohol (MPA) were investigated as functions of the MPA content, time of exposure and temperature. The maximum value of the acoustooptical quality coefficient was achieved for values of the MPA content above 70%. It was proposed to use the polyvinyl alcohol photopolymers as acoustooptical modulators and deflectors. An essential influence of the polyvinyl alcohol modifications on the acoustooptical parameters was unambiguously shown. Also, a critical dependence of the acoustooptical coefficients on the sample thickness was revealed. The data on the acoustooptical quality coefficient correlate well with the data obtained for the sound losses coefficient. (C) 1997 Elsevier Science Ltd.
引用
收藏
页码:4803 / 4806
页数:4
相关论文
共 7 条
[1]  
KISELEV VY, Patent No. 1736287
[2]  
KRAVCHUK VA, 1995, UKRAINIAN POLYM, V4, P174
[3]  
KRAVCHUK VA, Patent No. 2654712
[4]  
KRAVCHUK VA, 1992, TECHNOL CONSTRUCT EL, V1, P38
[5]  
KRYVDYK OM, 1994, THESIS LVOV STATE U
[6]  
ROBINSON KP, 1992, J POLYM SCI, V6, P345
[7]  
SHILOV VV, 1992, UKRAINIAN POLYM J, V1, P185