Thin-layer chromatography of phenol-formaldehyde resole resins
نویسندگان
چکیده
منابع مشابه
Wetting Behaviors of Phenol- and Urea-formaldehyde Resins as Compatibilizers
Understanding wetting behavior and surface coverage of resins on a wood surface is important to obtain satisfactory adhesion and optimize adhesive application for wood composite manufacturing. Sessile and micro-droplets of ureaand phenol-formaldehyde (UF and PF) resins were generated on wood surfaces to observe wetting behaviors using three directional image generation system and atomic force m...
متن کاملSynthesis and Cure Kinetics of Liquefied Wood/Phenol/ Formaldehyde Resins
Wood liquefaction was conducted at a 2/1 phenol/wood ratio in two different reactors: (1) an atmospheric three-necked flask reactor and (2) a sealed Parr reactor. The liquefied wood mixture (liquefied wood, unreacted phenol, and wood residue) was further condensed with formaldehyde under acidic conditions to synthesize two novolac-type liquefied wood/phenol/formaldehyde (LWPF) resins: LWPF1 (th...
متن کاملThermal Curing Behavior and Tensile Properties of Resole Phenol-Formaldehyde Resin/Clay/Cellulose Nanocomposite*
This study investigated the effects of layered clay on the thermal curing behavior and tensile properties of resole phenol-formaldehyde (PF) resin/clay/cellulose nanocomposites. The thermal curing behavior of the nanocomposite was characterized using conventional differential scanning calorimetry (DSC) and temperature modulated (TMDSC). The addition of clay was found to accelerate resin curing,...
متن کاملThin-Layer (Planar) Chromatography
phy 665: 243. Junk GA, Richard JJ, Grieser MD et al. (1974) Use of Macroreticular resins in the analysis of water for trace organic contaminants. Journal of Chromatography 99: 745. Puig D and BarceloH D (1995) Off-line and on-line solidphase extraction followed by liquid chromatography for the determination of priority phenols in natural waters. Chromatographia 40: 435. Puig D and BarceloH D (1...
متن کاملThin-Layer (Planar) Chromatography
Synthetic dyes comprise a large group of organic, organic salt and organometallic compounds which number in the thousands. Most individual dyes are assigned colour index (CI) numbers which helps to identify structure and properties as well as identity where a series of names have been used by the manufacturers for the same dye. Pigments are also listed and can be either organic or inorganic in ...
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ژورنال
عنوان ژورنال: BUNSEKI KAGAKU
سال: 1973
ISSN: 0525-1931
DOI: 10.2116/bunsekikagaku.22.921