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Titolo:
Synthesis and characterization of resol type phenolic resin/layered silicate nanocomposites
Autore:
Byun, HY; Choi, MH; Chung, IJ;
Indirizzi:
Korea Adv Inst Sci & Technol, Dept Chem Engn, Taejon 305701, South Korea Korea Adv Inst Sci & Technol Taejon South Korea 305701 5701, South Korea
Titolo Testata:
CHEMISTRY OF MATERIALS
fascicolo: 11, volume: 13, anno: 2001,
pagine: 4221 - 4226
SICI:
0897-4756(200111)13:11<4221:SACORT>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
MASS-SPECTROMETRY CHARACTERIZATION; MELT INTERCALATION; LAYERED SILICATES; POLYMER; MONTMORILLONITE; RESINS; HYBRID;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
31
Recensione:
Indirizzi per estratti:
Indirizzo: Chung, IJ Korea Adv Inst Sci & Technol, Dept Chem Engn, 373-1 Kusong, Taejon 305701,South Korea Korea Adv Inst Sci & Technol 373-1 Kusong Taejon South Korea 305701
Citazione:
H.Y. Byun et al., "Synthesis and characterization of resol type phenolic resin/layered silicate nanocomposites", CHEM MATER, 13(11), 2001, pp. 4221-4226

Abstract

Resol type phenolic resin/layered silicate nanocomposites (RPLSNs) are prepared by melt intercalation using various layered silicates such as sodium montmorillonite (MMT) and omega -amino acid modified montmorillonites (C3M,C6M, and C12M). The most hydrophilic MMT is the most compatible with the resol type phenolic resin (KL) at the beginning of cure due to the initial hydrophilicity of KL with many methylol groups. However, HL is deintercalated out of extragallery of MMT during the cure since the HL lose hydrophilicity by the depletion of methylol groups. It is found that the C6M has the best miscibility with KL at the entire cure stage. The KLC6M system has the best mechanical properties, due to the end-tethered structure formed by the reaction between the organic modifier (carboxylic acid) of C6M and the methylol group of KL, as well as the excellent dispersion of silicate layers. RPLSNs have similar thermal stability to the neat phenolic resin.

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Documento generato il 26/09/17 alle ore 09:11:33