Mixed‐crystal infrared studies on melt‐crystallized polyethylene

In order to minimize the occurrence of heterogeneities, or segregation, of polyethylene and poly(ethylene‐d4) in mixed‐crystal systems during melt crystallization, it has been found that conditions of high molar ratio of PEH/PED and a small difference in melting points between the two species are necessary. Under these optimum conditions the infrared spectral results observed in melt‐crystallized polyethylene have to be attributed predominantly to chains which fold essentially with adjacent reentry along (200) planes.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/69769/2/JAPIAU-46-10-4181-1.pd