Aerogels are materials that are characterized by having
highly porous structures and low density. They
are obtained by fixation of wet gels while maintaining
the openness of the structure in the dry process.
Among a variety of inorganic and organic precursors
of aerogels, celluloses have gained great popularity during
the last few decades due to their environmentally
and biologically-friendly features safety. Celluloses are
long-chain polymers that occur naturally on a massive
scale and are typically obtained from plant fibers such
as woods, basts, flaxes and hemps. Cellulose-based aerogels
involve the two important components that are aggressively
pursued in a broad spectrum of today’s most
∗E-mail: sbpkim@dongguk.edu
prominent research issues sustainability and nanotechnology.
First, because they are made from a renewable
resource, they are considered to be sustainable, a property
that is becoming more and more important. Second,
the pore size of these aerogels is partly in the nanometerregion;
therefore, they can also be called a nanomaterial
Aerogels are materials that are characterized by havinghighly porous structures and low density. Theyare obtained by fixation of wet gels while maintainingthe openness of the structure in the dry process.Among a variety of inorganic and organic precursorsof aerogels, celluloses have gained great popularity duringthe last few decades due to their environmentallyand biologically-friendly features safety. Celluloses arelong-chain polymers that occur naturally on a massivescale and are typically obtained from plant fibers suchas woods, basts, flaxes and hemps. Cellulose-based aerogelsinvolve the two important components that are aggressivelypursued in a broad spectrum of today’s most∗E-mail: sbpkim@dongguk.eduprominent research issues sustainability and nanotechnology.First, because they are made from a renewableresource, they are considered to be sustainable, a propertythat is becoming more and more important. Second,the pore size of these aerogels is partly in the nanometerregion;therefore, they can also be called a nanomaterial
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