Styrenation of triglyceride oil by nitroxide mediated radical polymerization

Styrenated urethane oil synthesis via CuAAC “click” chemistry approach

“…Even though triglyceride oils cannot be directly used in coating applications, they can be successfully used after applying various modification methods in this field [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. One of the most popular modification techniques is the copolymerization of triglyceride oils with vinyl monomers, most extensively with styrene (St).…”

“…In the classical styrenation process, the formation of homopolystyrene leads to weak film properties. A number of studies were previously carried out in our laboratory with respect to avoidance of homopolymer formation in order to improve the film properties of oil-based binders [6][7][8][9][10][11][12][13][14]. In our previous studies, different strategies were employed to insert St segment into the oil structure.…”

“…In our previous studies, different strategies were employed to insert St segment into the oil structure. One of these strategies was the macromonomer technique and the other one was the use of macroinitiator having large oil portion as a soft segment [7][8][9][10][11][12]. Moreover, in addition to vinyl polymer segments, inorganic domains such as vinyl trimethoxysilane, 3-aminopropyltriethoxysilane and titanium isopropoxide were also inserted into the final polymer structure [13,14].…”

“…It should be emphasized that oil portion of the polymeric structure imparts the flexibility characteristic to the film to overcome the brittleness drawback. Moreover, the combination of oil segment with polystyrene and polyurethane polymers improves the film properties such as short drying time, good alkali, acid and, water resistances [6][7][8][9][10][11][12][13][14].…”

“…In the recent years, the combination of CuAAC and controlled living radical polymerization (CLRP) methods is a robust and favourable strategy for the synthesis of novel materials since CLRP which are nitroxide mediated radical polymerization (NMRP), atom transfer radical polymerization (ATRP) and reversible addition-fragmentation chain transfer polymerization (RAFT) methods have powerful advantage on the structure control of polymer chain comparing to the conventional free radical polymerization (FRP) method [8]. The product with the controlled structure and molecular weight, end group and low polydispersity can be obtained by means of CLRP methods.…”