International Journal of Polymer Science / 2015 / Article / Fig 8

Research Article

Investigations on the Structural and Mechanical Properties of Polyurethane Resins Based on Cu(II)phthalocyanines

Figure 8

Samples of PU (a), CuPc(1%)/PU (b), CuPc(15%)/PU (c), and CuPc(30%)/PU (d) before and after being exposed to UV.
(a)
(b)
(c)
(d)