produced a micro porous form of ultra-high molecular weight polyethylene (UHMWPE), capable of exhibiting large negative Poisson's ratios as low as -1.2 depending on the degree of anisotropy in the material. Liu P et al.32 developed liquid crystalline polymer (LCP). The arrangement of laterally attached rods in a main chain of LCP is shown in Figure 2a. The nematic field leads to orientation of the laterally attached rods parallel to the polymer chain axis. Under tensile stress as shown in Figure 2b, full extension of the polymer main chain forces the laterally attached rods normal to the chain axis leading to an expansion in the direction normal to the chain axis and hence to auxetic behavior