TY - JOUR
T1 - Improving visible-light transparency of drawn melt-crystallized linear polyethylenes
T2 - influence of molecular weight distribution
AU - Shen, L.
AU - Severn, J.
AU - Bastiaansen, C.W.M.
PY - 2017/6/1
Y1 - 2017/6/1
N2 - A series of drawn melt-crystallized linear polyethylenes (LPEs) with different molecular weight distributions (MWD = Mw/Mn) ranging from 2 to 25 are investigated with respect to the visible-light transparency. The results indicate that the MWD of the LPEs significantly influences the visible-light transparency of drawn melt-crystallized LPEs. At a high MWD, drawn melt-crystallized LPEs films are transparent and glass-like, this in contrast to the LPEs with a low MWD. A mechanism behind the observed results is proposed based on differential scanning calorimetry (DSC) analysis, small-angle X-ray scattering, wide-angle X-ray scattering, and small-angle light scattering experiments. A correlation between the molecular characteristics, especially the MWD, and the visible-light transparency of the drawn melt-crystallized LPEs is proposed. (Figure presented.).
AB - A series of drawn melt-crystallized linear polyethylenes (LPEs) with different molecular weight distributions (MWD = Mw/Mn) ranging from 2 to 25 are investigated with respect to the visible-light transparency. The results indicate that the MWD of the LPEs significantly influences the visible-light transparency of drawn melt-crystallized LPEs. At a high MWD, drawn melt-crystallized LPEs films are transparent and glass-like, this in contrast to the LPEs with a low MWD. A mechanism behind the observed results is proposed based on differential scanning calorimetry (DSC) analysis, small-angle X-ray scattering, wide-angle X-ray scattering, and small-angle light scattering experiments. A correlation between the molecular characteristics, especially the MWD, and the visible-light transparency of the drawn melt-crystallized LPEs is proposed. (Figure presented.).
KW - drawing
KW - linear polyethylenes
KW - molecular weight distribution
KW - transparency
UR - http://www.scopus.com/inward/record.url?scp=85017368299&partnerID=8YFLogxK
U2 - 10.1002/mame.201700003
DO - 10.1002/mame.201700003
M3 - Article
AN - SCOPUS:85017368299
SN - 1438-7492
VL - 302
JO - Macromolecular Materials and Engineering
JF - Macromolecular Materials and Engineering
IS - 6
M1 - 1700003
ER -