Near-infrared spectroscopy for in situ cure monitoring of dimethacrylate-based networks

被引：42

作者：

Rey, L

Galy, J

Sautereau, H

Lachenal, G

Henry, D

Vial, J

机构：

[1] Inst Natl Sci Appl, Mat Macromol Lab, UMR 5627, F-69621 Villeurbanne, France

[2] Univ Lyon 1, Lab Mat Polymeres & Biomat, UMR 5627, F-69621 Villeurbanne, France

[3] CORNING SA, Ctr Europeen Rech, F-77210 Avon, France

来源：

APPLIED SPECTROSCOPY | 2000年 / 54卷 / 01期

关键词：

near-infrared spectroscopy; in situ cure monitoring; dimethacrylate-based networks; double-bond conversion;

D O I：

10.1366/0003702001948358

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 [仪器科学与技术]; 080401 [精密仪器及机械]; 081102 [检测技术与自动化装置];

摘要：

In this study, near-infrared transmission spectroscopy is investigated as an alternative technique for the real-time cure monitoring of thermosets systems, Two polymer systems based on dimethacrylate/styrene and dimethacrylate/divinylbenzene monomers were studied in order to check the influence of comonomer functionality. A new device utilizing ITO (indium-tin-oxide)-coated glass plates was developed to take into account the specificity of chain polymerization: oxygen inhibition, bulk polymerization, etc. Two absorption bands at 6166 and 6135 cm(-1) suitable for in situ monitoring of methacrylate and vinyl double bonds were identified, and the molar absorption coefficient was determined. A quantitative analysis allows us to calculate the double-bond conversion during the polymerization in isothermal conditions between 60 and 80 degrees C.

引用

页码：39 / 43

页数：5

共 22 条

[1]

Friedel-Crafts acylation on porous divinyl benzene polymer particles: A reaction kinetic process studied by mid- and near-infrared spectroscopy [J].