Effect of molecular weight and temperature on the isothermal crystallization of poly(oxetane)

Pérez, E. ; Bello, A. ; Fatou, J. G.
Springer
Published 1984
ISSN:
1435-1536
Keywords:
Poly(oxetane) ; poly(oxacyclobutane) ; isothermal crystallization ; bulk crystallization ; crystallization temperature coefficient
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract Poly(oxetane) fractions ranging in number-average molecular weights from 7800 to 157000 have been isothermally crystallized in the temperature range from −50 to 19
Type of Medium:
Electronic Resource
URL:
_version_ 1798296174083440640
autor Pérez, E.
Bello, A.
Fatou, J. G.
autorsonst Pérez, E.
Bello, A.
Fatou, J. G.
book_url http://dx.doi.org/10.1007/BF01452450
datenlieferant nat_lic_papers
hauptsatz hsatz_simple
identnr NLM20878196X
issn 1435-1536
journal_name Colloid & polymer science
materialart 1
notes Abstract Poly(oxetane) fractions ranging in number-average molecular weights from 7800 to 157000 have been isothermally crystallized in the temperature range from −50 to 19
package_name Springer
publikationsjahr_anzeige 1984
publikationsjahr_facette 1984
publikationsjahr_intervall 8019:1980-1984
publikationsjahr_sort 1984
publisher Springer
reference 262 (1984), S. 605-610
schlagwort Poly(oxetane)
poly(oxacyclobutane)
isothermal crystallization
bulk crystallization
crystallization temperature coefficient
search_space articles
shingle_author_1 Pérez, E.
Bello, A.
Fatou, J. G.
shingle_author_2 Pérez, E.
Bello, A.
Fatou, J. G.
shingle_author_3 Pérez, E.
Bello, A.
Fatou, J. G.
shingle_author_4 Pérez, E.
Bello, A.
Fatou, J. G.
shingle_catch_all_1 Pérez, E.
Bello, A.
Fatou, J. G.
Effect of molecular weight and temperature on the isothermal crystallization of poly(oxetane)
Poly(oxetane)
poly(oxacyclobutane)
isothermal crystallization
bulk crystallization
crystallization temperature coefficient
Poly(oxetane)
poly(oxacyclobutane)
isothermal crystallization
bulk crystallization
crystallization temperature coefficient
Abstract Poly(oxetane) fractions ranging in number-average molecular weights from 7800 to 157000 have been isothermally crystallized in the temperature range from −50 to 19
, using dilatometric and calorimetric techniques. In both cases, reproducible isotherms were obtained with an Avrami exponent equal to three. The crystallization rate against crystallization temperature presents a maximum at −30
. The level of crystallinity changes with molecular weight and the influence of this parameter on the rate of crystallization is pronounced. The crystallization temperature coefficient was studied using nucleation theory and it was found an slight increase in the basal interfacial free energy for the lowest molecular weight fraction. For the analysis of the temperature coefficient at the higher undercoolings, different approximations for the free energy of fusion and the transport term have been considered. The conclusion of this analysis is that, independently of these approximations, the obtained temperature coefficients are the same.
1435-1536
14351536
Springer
shingle_catch_all_2 Pérez, E.
Bello, A.
Fatou, J. G.
Effect of molecular weight and temperature on the isothermal crystallization of poly(oxetane)
Poly(oxetane)
poly(oxacyclobutane)
isothermal crystallization
bulk crystallization
crystallization temperature coefficient
Poly(oxetane)
poly(oxacyclobutane)
isothermal crystallization
bulk crystallization
crystallization temperature coefficient
Abstract Poly(oxetane) fractions ranging in number-average molecular weights from 7800 to 157000 have been isothermally crystallized in the temperature range from −50 to 19
, using dilatometric and calorimetric techniques. In both cases, reproducible isotherms were obtained with an Avrami exponent equal to three. The crystallization rate against crystallization temperature presents a maximum at −30
. The level of crystallinity changes with molecular weight and the influence of this parameter on the rate of crystallization is pronounced. The crystallization temperature coefficient was studied using nucleation theory and it was found an slight increase in the basal interfacial free energy for the lowest molecular weight fraction. For the analysis of the temperature coefficient at the higher undercoolings, different approximations for the free energy of fusion and the transport term have been considered. The conclusion of this analysis is that, independently of these approximations, the obtained temperature coefficients are the same.
1435-1536
14351536
Springer
shingle_catch_all_3 Pérez, E.
Bello, A.
Fatou, J. G.
Effect of molecular weight and temperature on the isothermal crystallization of poly(oxetane)
Poly(oxetane)
poly(oxacyclobutane)
isothermal crystallization
bulk crystallization
crystallization temperature coefficient
Poly(oxetane)
poly(oxacyclobutane)
isothermal crystallization
bulk crystallization
crystallization temperature coefficient
Abstract Poly(oxetane) fractions ranging in number-average molecular weights from 7800 to 157000 have been isothermally crystallized in the temperature range from −50 to 19
, using dilatometric and calorimetric techniques. In both cases, reproducible isotherms were obtained with an Avrami exponent equal to three. The crystallization rate against crystallization temperature presents a maximum at −30
. The level of crystallinity changes with molecular weight and the influence of this parameter on the rate of crystallization is pronounced. The crystallization temperature coefficient was studied using nucleation theory and it was found an slight increase in the basal interfacial free energy for the lowest molecular weight fraction. For the analysis of the temperature coefficient at the higher undercoolings, different approximations for the free energy of fusion and the transport term have been considered. The conclusion of this analysis is that, independently of these approximations, the obtained temperature coefficients are the same.
1435-1536
14351536
Springer
shingle_catch_all_4 Pérez, E.
Bello, A.
Fatou, J. G.
Effect of molecular weight and temperature on the isothermal crystallization of poly(oxetane)
Poly(oxetane)
poly(oxacyclobutane)
isothermal crystallization
bulk crystallization
crystallization temperature coefficient
Poly(oxetane)
poly(oxacyclobutane)
isothermal crystallization
bulk crystallization
crystallization temperature coefficient
Abstract Poly(oxetane) fractions ranging in number-average molecular weights from 7800 to 157000 have been isothermally crystallized in the temperature range from −50 to 19
, using dilatometric and calorimetric techniques. In both cases, reproducible isotherms were obtained with an Avrami exponent equal to three. The crystallization rate against crystallization temperature presents a maximum at −30
. The level of crystallinity changes with molecular weight and the influence of this parameter on the rate of crystallization is pronounced. The crystallization temperature coefficient was studied using nucleation theory and it was found an slight increase in the basal interfacial free energy for the lowest molecular weight fraction. For the analysis of the temperature coefficient at the higher undercoolings, different approximations for the free energy of fusion and the transport term have been considered. The conclusion of this analysis is that, independently of these approximations, the obtained temperature coefficients are the same.
1435-1536
14351536
Springer
shingle_title_1 Effect of molecular weight and temperature on the isothermal crystallization of poly(oxetane)
shingle_title_2 Effect of molecular weight and temperature on the isothermal crystallization of poly(oxetane)
shingle_title_3 Effect of molecular weight and temperature on the isothermal crystallization of poly(oxetane)
shingle_title_4 Effect of molecular weight and temperature on the isothermal crystallization of poly(oxetane)
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timestamp 2024-05-06T09:47:54.071Z
titel Effect of molecular weight and temperature on the isothermal crystallization of poly(oxetane)
titel_suche Effect of molecular weight and temperature on the isothermal crystallization of poly(oxetane)
topic V
ZL
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