Characterization of phenol-urea-formaldehyde resin by infine FTIR spectroscopy

被引：54
|
作者：
Poljansek, I [1 ]
Sebenik, U [1 ]
Krajnc, M [1 ]
机构：
[1] Univ Ljubljana, Fac Chem & Chem Technol, SI-1001 Ljubljana, Slovenia
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2006年 / 99卷 / 05期
关键词：
phenol-urea-formaldehyde resin; inline IR spectroscopy; C-13; NMR; DSC; TGA;
D O I：
10.1002/app.22161
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Phenol-urea-formaldehyde (PUF) resins were synthesized by a two-step polymerization process. The first step was the synthesis of 2,4,6-trimethylolphenol (TMeP) from phenol and formaldehyde, under alkaline conditions. In the second step PUF resins were synthesized by the reaction of TMeP with urea, under acidic and alkaline conditions. The influence of temperature on the synthesis of TMeP was investigated. The molar ratio between TMeP and urea was varied to study the composition effect on the second step of the PUF synthesis and final product properties. Synthesis of TMeP and PUF resins were monitored by inline FTIR-ATR system. Analytical methods, such as differential scanning calorimetry, nuclear magnetic resonance, thermogravimetric analysis, and infrared spectroscopy were used for characterization of TMeP and PUF resins. Obtained PUF resins were cured and tested on flexural strength.
引用
收藏
页码：2016 / 2028
页数：13
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