TY - JOUR
T1 - Microfocus wide-angle X-ray scattering of polymers crystallized in a fast scanning chip calorimeter
AU - Drongelen, van, M.
AU - Meijer-Vissers, A.M.J.T.
AU - Cavallo, D.
AU - Portale, G.
AU - Vanden Poel, G.
AU - Androsch, R.
PY - 2013
Y1 - 2013
N2 - Microfocus wide-angle X-ray scattering (WAXS) has been applied for analysis of the polymorphism of
isotactic polypropylene and polyamide 6 prepared in a fast scanning chip calorimeter (FSC). Samples
with a typical mass of few hundred nanograms, and lateral dimension and thickness of about 100 m
and 20 m, respectively, were exposed to a defined thermal history in the FSC and subsequently analyzed regarding the X-ray structure at ambient temperature using an intense synchrotron microfocused X-ray beam. The relaxed melt of isotactic polypropylene was cooled at rates of 40 K s-1 and 200 K s-1 which allowed formation of -crystals or mesophase, respectively. Polyamide 6 was isothermally crystallized at 95 ¿C and 180 ¿C which led to formation of -mesophase and -crystals, respectively. This study demonstrated,for the first time, that FSC polymer crystallization experiments could be completed and expanded by subsequent in situ structure analysis by X-ray scattering.
AB - Microfocus wide-angle X-ray scattering (WAXS) has been applied for analysis of the polymorphism of
isotactic polypropylene and polyamide 6 prepared in a fast scanning chip calorimeter (FSC). Samples
with a typical mass of few hundred nanograms, and lateral dimension and thickness of about 100 m
and 20 m, respectively, were exposed to a defined thermal history in the FSC and subsequently analyzed regarding the X-ray structure at ambient temperature using an intense synchrotron microfocused X-ray beam. The relaxed melt of isotactic polypropylene was cooled at rates of 40 K s-1 and 200 K s-1 which allowed formation of -crystals or mesophase, respectively. Polyamide 6 was isothermally crystallized at 95 ¿C and 180 ¿C which led to formation of -mesophase and -crystals, respectively. This study demonstrated,for the first time, that FSC polymer crystallization experiments could be completed and expanded by subsequent in situ structure analysis by X-ray scattering.
U2 - 10.1016/j.tca.2013.04.007
DO - 10.1016/j.tca.2013.04.007
M3 - Article
SN - 0040-6031
VL - 563
SP - 33
EP - 37
JO - Thermochimica Acta
JF - Thermochimica Acta
ER -