Polyethylhexyl acrylate

For cellulose nitrate, polyacrylates of higher alcohols have proved to give very smooth and transparent films. Good results are obtained with polybutyl acrylate and polyethylhexyl acrylate. The polyacrylates of higher alcohols can be used as plasticizers for rubber. Oligomers of acrylates can not be used in combination with PVC, because they give only hard films. 

The adhesion force after brief contact is called tack (Zosel, 1985,1986). Table 9.2 shows the tack of some acrylic homopolymers. The higher the amount of carbon atoms (C ) in the side chain the higher is the maximum tack, and the lower is the temperature T (max-tack) at which the maximum tack occurs. Low Tg monomers give soft and tacky polymers, in particular polyethylhexyl and polybutyl acrylate have the best tack at room temperature (Druschke, 1987). 

It can be seen that tack is greatest at temperatures 50-80 °C above the Tg of the homopolymers. In addition, the tack increases with increasing hydrocarbon chain length of the acrylic monomer. For use at room temperature, polyethylhexyl and polybutyl acrylate have the greatest tack [27]. 

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See also in sourсe #XX -- [ ]

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