Premium
The preparation of phenolic resin/montmorillonite nanocomposites by suspension condensation polymerization and their morphology
Author(s) -
Wu Zenggang,
Zhou Chixing,
Qi Rongrong
Publication year - 2002
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.10463
Subject(s) - montmorillonite , materials science , nanocomposite , exfoliation joint , curing (chemistry) , suspension polymerization , morphology (biology) , polymerization , chemical engineering , polymer chemistry , transmission electron microscopy , condensation , composite material , polymer , nanotechnology , graphene , thermodynamics , physics , biology , engineering , genetics
Phenolic resin/clay nanocomposites were prepared using a suspension condensation polymerization method that was suitable to both novolac and resole. Natural montmorillonite and two kinds of organic modified montmorillonite were adopted to investigate the effect of modification on the final morphology of the nanocomposites. X‐ray diffraction (XRD) measurements and Transmission Electron Microscope (TEM) observations showed that clay platelets were easier to be exfoliated or intercalated in novolac than in resole because novolac usually has a linear structure. The modifier with a phenyl ring was more compatible with novolac (or resole) than the aliphatic type modifier. The influence of curing on the morphology was studied as well. An exfoliation‐adsorption and in situ condensation mechanism was proposed on the formation of the nanocomposites.