A TECHNIQUE FOR MEASUREMENT OF WATER ADSORPTION OF SMALL AMOUNTS OF HYGROSCOPIC MATERIALS - WATER ADSORPTION ISOTHERM OF POLYGLYCINE

被引：11

作者：

KENNERLEY, MG

机构：

来源：

POLYMER | 1969年 / 10卷 / 10期

关键词：

D O I：

10.1016/0032-3861(69)90112-8

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A technique for the measurement of the adsorption of water vapour by films of hygroscopic materials is described. The basis of the technique is the use of a resonating quartz crystal which is coated with the material to be investigated. The resonant frequency of the quartz crystal is lowered when mass is added to the crystal, and the adsorption of water vapour is followed by measuring the change in frequency of the crystal. The response of the quartz crystal to mass has been determined and other factors affecting the frequency of the crystals have been investigated. Finally the water adsorption isotherm of polyglycine has been determined at 31.5°C and compared with data in the literature. © 1969.

引用

页码：833 / +

页数：1

共 8 条

[1]

CADY WG, 1964, PIEZOELECTRICITY, V2, P453

[2]

HEISING RA, 1946, QUARTZ CRYSTALS ELEC

[3]

KING WH, 1964, J ANALYT CHEM USSSR, V36, P1735

[4] LOW TEMPERATURE INFRARED SPECTRA OF POLYGLYCINES AND C-H...O=C HYDROGEN BONDING IN POLYGLYCINE 2 [J].