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An exfoliated clay‐poly(norbornene) nanocomposite prepared by metal‐mediated surface‐initiated polymerization
Author(s) -
Penaloza David P.,
Sandberg Daniel J.,
Giotto Marcus V.,
Seery Thomas A.P.
Publication year - 2015
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.24123
Subject(s) - romp , norbornene , materials science , silanol , polymer chemistry , montmorillonite , polymerization , nanocomposite , polymer , chlorosilane , metathesis , ring opening metathesis polymerisation , chemical engineering , composite material , catalysis , organic chemistry , chemistry , silicon , engineering , metallurgy
An exfoliated clay−polymer nanocomposite was prepared by surface‐initiated ring opening metathesis polymerization (SI‐ROMP) of norbornene on a montmorillonite (MMT) clay with a modified surface. Utilizing the hydrothermal‐silylation reaction between a norbornenyl‐bearing chlorosilane agent and silanol groups of the MMT clay, we were able to bind a metal alkylidene catalyst to the surface in order to grow poly(norbornene) chains directly from the surface using ROMP. Our approach produced nanocomposites having poly(norbornene) chains that are covalently attached to the inorganic substrate, as opposed to most conventional polymer‐clay composites that have ionically tethered chains (via the ammonium‐based modifiers of the organoclay) or physically adsorbed polymers. POLYM. ENG. SCI., 55:2349–2354, 2015. © 2015 Society of Plastics Engineers