Tezislər / Theses

İstinadlar: 
[1] Q.Ş. Məmmədov, M.Y. Xəlilov, “ Ekologiya və ətraf mühit,” Bakı, 2004. 
SOYBEAN OIL-BASED POLYURETHANE COATINGS 
Najaf Aghamaliyev
Baku Higher Oil School 
Baku, Azerbaijan 
[e-mail]
Supervisor: Rima Guliyeva 
Key Words:
Soybean, Polyurethanes, Sustainable Development 
The agenda of today’s scientific world is “sustainable development”. 
Polymeric coatings have a very important place in industry from an economical 
point of view. Epoxy, alkyd, polyurethanes and polyetheramides are excessively 
used for coating purposes (A. Chaudhari, 2013). The ongoing strategy on 
green coatings is to utilize renewable resources, find eco-friendly ways of 

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 INTERNATIONAL SCIENTIFIC CONFERENCES OF STUDENTS AND YOUNG RESEARCHERS 
dedicated to the 99
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production and improving their material degradation to be able to apply them 
for a long time. The coating industry has already started the concept of 
environment friendly technologies. These are high solids, water borne, 
hyperbranched, UV curable, no solvent coatings which use monomers/ 
polymers obtained through renewable resources. Vegetables oils are one of 
the most abundant, biodegradable, non-toxic and cost-effective resource of 
the nature provided to humans.
In this paper, particular vegetable oil, soybean oil was focused on. 
Soybean oil has several advantages such as high saturation number than 
other vegetable oil. It is also one of the most abundant sources of vegetable 
oils. Three main soy-based polyurethane coating types are provided. 
Non-isocyanate Polyurethane (NIPU) Coatings 
In industry, polyurethanes are produced mainly from two methods: one-
step and two-step prepolymer methods (Datta, 2017). Both methods require 
polyaddition of aromatic or aliphatic diisocyanates and oligomeric diols with 
chain extender (usually low molecular weight diols), catalysts or other 
additives (Sharmin, 2012). Polyols react diisocyanates forming prepolymers 
that are terminated with isocyanate groups. Then chain extenders are used 
to produce polyurethanes. Traditional polyurethane production has some 
hazardous properties, especially isocyanate monomers that which are used 
for getting prepolymer. Diisocyanates are obtained via treatment of primary 
amines with phosgene, resulting in hydrogen chloride production. Phosgene 
is a highly toxic and lethal gas, and it is produced from the reaction of chlorine 
and carbon monoxide (Gao, 2009). Considering drawbacks of conventional 
production, soybean oil based nonisocyanate PU coatings were implemented. 
B. Tamami and his coworkers managed to produce nonisocyanate 
polyurethane networks (NIPUs) from the reaction between di- or tri-primary 
amines and CSBO. An exemplary reaction was shown with n-butylamine 
which resulted in effective ring opening of cyclic carbonate as shown below: 

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