TY - JOUR
T1 - Characterization of poly(D,L-lactic acid) by gel permeation chromatography
AU - van Dijk, J.A.P.P.
AU - Smit, J.A.M.
AU - Kohn, F.E.
AU - Feijen, Jan
PY - 1983
Y1 - 1983
N2 - A number of samples of poly(D,L-lactic acid) (PLA) with weight-average molecular weights Ṁw in the range 15,000-350,000 were prepared by a ring-opening polymerization. The molecular weight distributions (MWDs) of these samples were determined by gel permeation chromatography (GPC). The method involves a universal calibration of the columns on the basis of polystyrene standards and a rapid iteration algorithm leading to the establishment of the Mark-Houwink relationship. In addition, osmometry and viscometry data are presented. The effect of hydrolytic degradation on the MWD of two PLA samples was studied by GPC.
AB - A number of samples of poly(D,L-lactic acid) (PLA) with weight-average molecular weights Ṁw in the range 15,000-350,000 were prepared by a ring-opening polymerization. The molecular weight distributions (MWDs) of these samples were determined by gel permeation chromatography (GPC). The method involves a universal calibration of the columns on the basis of polystyrene standards and a rapid iteration algorithm leading to the establishment of the Mark-Houwink relationship. In addition, osmometry and viscometry data are presented. The effect of hydrolytic degradation on the MWD of two PLA samples was studied by GPC.
KW - IR-70784
U2 - 10.1002/pol.1983.170210121
DO - 10.1002/pol.1983.170210121
M3 - Article
VL - 21
SP - 197
EP - 208
JO - Journal of Polymer Science: Polymer Chemistry Edition
JF - Journal of Polymer Science: Polymer Chemistry Edition
SN - 0360-6376
IS - 1
ER -