Synchrotronowe badania nanostruktury materiałów polietylenowych

J. Janicki; S. Rabiej; A. Włochowicz

Published : 2022-09-01

Vol. 49 No. 4 (2004)

Synchrotron investigations of polyethylene materials nanostructures

J. Janicki S. Rabiej A. Włochowicz

Abstract

Nanostructures of polyethylene materials were investigated, at real time in the processes of crystallization and melting, with using of SAXS (Fig. 2) or DSC (Fig. 4) methods. The following polyethylene materials (Table 1) were investigated: homogeneous copolymers of ethylene/1-alkene (propene, butene, octene), standard linear polyethylene (PE-L), high-density polyethylene (PE-HD) and low-density polyethylene (PE-LD). The term homogeneous copolymers" concerns copolymers obtained with using of metalocene or vanadium based catalysts. Except the narrow molecular weights distributions they show constant content of co-monomers units in the chains and statistically identical distribution of these units in the each chain. Theoretical base as well as the methodology of the calculations of the results were described in details. There were presented mathematical dependences describing: correlation function [equation (1), graphical forms in Figs. 1 and 7], invariant [i.e. full scattering power of a material - equations (2) and (3)], thickness of crystalline lamellae and amorphic layers [equation (5)] as well as mass degree of crystallinity [equation (7)]. Changes of crystallinity degree (w(c) - Figs. 5, 6 and 9), invariant (Q - Fig. 3), long period values (L(p)), thickness of crystalline lamellae (L(c)) or amorphic layers (L(a)) [Figs. 8, 10 and 11, equations (8)-(12)] proceeding in the wide range of temperature (from -40°C to +120°C) were discussed. The mechanism of lamella systems' melting was explained, taking into consideration the significant L(p) changes versus temperature and constant thickness of crystalline lamellae.

Keywords

kopolimery jednorodne etylen/1-alken ; polietylen ; rozpraszanie promieni rentgenowskich ; różnicowa kalorymetria skaningowa ; kalorymetria skaningowa ; struktura nanocząsteczkowa ; topnienie ; krystalizacja homogeneous copolymers of ethylene/1-alkene ; polyethylene ; SAXS ; DSC ; nanostructure, melting ; crystallization

Details

References

Statistics

Authors

Download files

PDF (Język Polski)

Zasady cytowania

Janicki, J., Rabiej, S., & Włochowicz, A. (2022). Synchrotron investigations of polyethylene materials nanostructures. Polimery, 49(4), 248-256. Retrieved from https://ichp.vot.pl/index.php/p/article/view/1747

References

Mathot V. B. F., Fabric C. M.: J. Polym Sci, Part B: Polym. Phys. Ed. 1990,28,2487.

2. Hunter B, K„ Russel K. E., Scammel M. V., Thompson S. L.: J. Polym. Sci., Part ,4; Polym. Chem. Cd. 1984, 22,1383.

3. Van den Eynde S., Mathot V. B. F., Reyneaers H.: Polymer 2000,41,3437.

4. Koch M. H. J., Bordas J.: Nucl. Instrum. Methods 1983, 208,461.

5. Boulin C. J., Kempf K„ Gabriel A., Koch M. H. J.: Nuclear lustrum. Methods Phys. Res. 1988, A269, 312.

6. Debye P„ Buech A. M. J.: Appl. Phys. 1949,20,1949.

7. Vonk C. G., Kortleve G.: Kolloid Z Z. Polym 1967, 220,19.

8. Strobl G. R„ Schneider M.: J. Polym. Sci., Part B: Polym. Phys. Ed. 1980,18,1343.

9. Goderis B„ Reynaers H., Koch M. H. J„ Mathot V. B. F.: J. Polym Sci., Part B: Polym. Phys Ed. 1999, 37, 1715.

10. Porod G.: Kolloid Z. 1951,124,83.

11. Ruland W.: J. Appl. Crysl. 1971,4,70.

12. Koberstein J. T„ Morra B., Stein R. 5.: J. Appl. Cryst. 1980,13,34.

13. Boulin C., Kempf R., Koch M. I i. ]., Mc Laughlin S. M.: Nucl. Instrum. Methods 1986, A249,399,

14. Mathot V. B. F„ Pijpers M. F. J. Therm. Anal. 1983, 28,349.

15. Mathot V. B. F.: „Calorimetry and Thermal Analysis of Polymers" (red. Mathot V. B. F.), rozdział 5., Hanser Publishers, Monachium 1994.

16. Wunderlich B.: Pure Appl Chart. 1995,67,1019.

17. Internet:
Crossref

18. Swan P. R.: J. Polym. Sci. 1960,42,525.

19. Hoffman J. D., Davis G. T., Lauritzen J. 1.: „Treatise on Solid State Chemistry", t. 3., Plenum Press, Nowy Jork 1979.

20. Hoffman J. D„ Miller R. L.: Polymer 1997, 38,3151.

21. Florv P.J.: Trans. Farad. Soc. 1955,51, 848.

16. Wunderlich B.: Pure Appl Chart. 1995,67,1019.

17. Internet: http://www.utk.edu/~athas

18. Swan P. R.: J. Polym. Sci. 1960,42,525.

19. Hoffman J. D., Davis G. T., Lauritzen J. 1.: „Treatise on Solid State Chemistry", t. 3., Plenum Press, Nowy Jork 1979.

20. Hoffman J. D„ Miller R. L.: Polymer 1997, 38,3151.

21. Florv P.J.: Trans. Farad. Soc. 1955,51, 848.

">Google Scholar

Citing articles via

Statistics

Total abstract views : 36

PDF Downloads : 20

J. Janicki jjanicki@ath.bielsko.pl

Affiliation
Akademia Techniczno-Humanistyczna w Bielsku-Białej, Instytut Inżynierii Tekstyliów i Materiałów Polimerowych, ul. Willowa 2 , 43-309 Bielsko-Biała

S. Rabiej

Affiliation
Akademia Techniczno-Humanistyczna w Bielsku-Białej, Instytut Inżynierii Tekstyliów i Materiałów Polimerowych, ul. Willowa 2 , 43-309 Bielsko-Biała

A. Włochowicz

Affiliation
Akademia Techniczno-Humanistyczna w Bielsku-Białej, Instytut Inżynierii Tekstyliów i Materiałów Polimerowych, ul. Willowa 2 , 43-309 Bielsko-Biała