Green polymer composites have drawn lot of attention on
renewable resources due to their biodegradation in nature. Vegetable
oils are inexpensive, renewable, and environmentally
friendly resources for synthesis of polyols and have tremendous
potential to replace petrochemicals. Among the different vegetable
oils, the soybean oils have been the more widely explored
for synthesis of polyol. Soybean oil derived polyol is defined as
soyol. It is mainly composed of triglyceride molecules derived
from unsaturated fatty acids such as linoleic acid (50%), oleic
acid (25%), and linolenic acid (7%) and its number of unsaturations
is higher than other vegetable oils (Ionescu, 2005). Soyol
is used as a natural renewable feedstock for PU industry due to
its characteristics of reducing greenhouse gas emissions, easy disposal
and handling with a virtually inexhaustible raw material
(Allen, 2009). Therefore it is very important to develop biorenewable
feedstock for industry now from an economic (Omni
Tech International, 2010) and environmental point of view