초록 |
The acrylic copolymers, which were used as base polymer for pressure sensitive adhesives, were synthesized by solution polymerization of ethyl acrylate, 2-ethylhexyl acrylate, lauryl acrylate, and acrylic acid with AIBN as an initiator. The acrylic copolymers were prepared with several different monomer ratios and various contents of epoxy-type crosslinking agent. These acrylic copolymers were investigated in terms of peel strength, cohesiveness, and probe tack. The peel strength and probe tack of acrylic copolymers increased as the content of lauryl acrylate increased due to the contribution of lowering the glass transition of acrylic copolymer with the longer side chain of lauryl acrylate. |