Procesy relaksacyjne i struktura fazowa kopolimerów estrowo-eteroamidowych

A. Kozłowska; J. Majszczyk

Published : 2022-09-01

Vol. 50 No. 11-12 (2005)

Relaxation processes and phase structure of ester-etheramide copolymers

A. Kozłowska J. Majszczyk

Abstract

The results of investigations by DSC and DMTA methods as well as dielectric properties of ester-etheramide copolymers - poly[ester-block-(ether-amide)] (PEEA) built of hard oligoester blocks (PBT) and soft oligoetheramide ones (OEA). Three series of PEEA differing in weight parts and polymerization degrees of hard and soft blocks were evaluated (Table 1). The effects of these variables on the following values were determined: phase transition temperatures (Fig. 1), dynamic mechanical properties (storage modulus, loss modulus and loss tangent - Fig. 2) and on the courses of dielectric relaxation processes (Fig. 3-6). An increase in phase separation has been found with elongation of oligoetheramide chain. The results of all our investigations show that PEEA type materials discussed show the properties typical for multiblock thermoplastic elastomers.

Keywords

termoplastyczne elastomery multiblokowe ; oligoestrowe bloki sztywne ; oligoamidowe bloki giętkie ; przemiany fazowe ; dynamiczne właściwości mechaniczne ; relaksacja dielektryczna multiblock thermoplastic elastomers ; oligoester soft blocks ; oligoester hard blocks ; phase transition ; dynamic mechanical properties ; dielectric relaxation

Similar Articles

Z. Członkowska-Kohutnicka, M. Zielonka, D. Wilson-Polit, R. Kwiatkowski, J. Sobczak, I. Leszczyńska, J. Kozakiewicz, A. Winiarska, Properties of the solutions and coatings of microgels containing polysiloxaneurethane prepolymers , Polimery: Vol. 48 No. 11-12 (2003)
R. Ukielski, A. Kozłowska, Reversible endothermic process observed by dsc in thermoplastic multiblock elastomers at middle temperature range , Polimery: Vol. 48 No. 11-12 (2003)
J. Majszczyk, Z. Rosłaniec, D. Pietkiewicz, T. Pakuła, The phase structure and relaxation phenomena in blends of a poly(ether-ester) elastomer with a liquid crystalline polyester , Polimery: Vol. 47 No. 1 (2002)
M. Zaborski, T. Paryjczak, A. Kazimierczak, J. Albińska, Charakterystyka fizykochemicznych właściwości nieorganicznych składników mieszanin polimerowych o budowie "jądro-powłoka". Cz. II. Układu zawierające krzemionkę pirogeniczną , Polimery: Vol. 47 No. 2 (2002)
M. Zaborski, T. Paryjczak, A. Kaźmierczak, J. Albińska, Characterization of physicochemical properties of the inorganic components in the "core-shell"-structured in polymer mixtures. Part II. The systems obtain pyrogenic silica , Polimery: Vol. 47 No. 3 (2002)
N. Pietruszka, Z. Brzozowski, A new group of liquid reactive nitrogen and nitrogen—phosphorus flame retardants for self-extinguishing polyurethane expanded polymers. Part I. Synthesis and properties , Polimery: Vol. 45 No. 3 (2000)
W. Wybór, M. Zaborski, A. Włochowicz, C. Ślusarczyk, Thermal and surface properties of fibers made from fiber-forming gelatin-g-polyacrylonitrile grafted copolymers , Polimery: Vol. 45 No. 3 (2000)
F. Mustata, I. Bicu, Cyclohexanone-aniline-formaldehyde resins - synthesis and characterization , Polimery: Vol. 47 No. 11-12 (2002)
L. Krochmalowa, Present advantages of chemistry and technology in the field of enamel systems for coil coatings and cans , Polimery: Vol. 46 No. 1 (2001)
E. Bociąga, The effect of injection mold gate construction on selected properties of polyethylene moldings , Polimery: Vol. 45 No. 2 (2000)

<< < 62 63 64 65 66 67 68 69 70 71 > >>

You may also start an advanced similarity search for this article.

Details

References

Statistics

Authors

Download files

PDF (Język Polski)

Zasady cytowania

Kozłowska, A., & Majszczyk, J. (2022). Relaxation processes and phase structure of ester-etheramide copolymers. Polimery, 50(11-12), 844–850. Retrieved from https://polimery.ichp.vot.pl/index.php/p/article/view/1696

Citing articles via

Statistics

Total abstract views : 0

PDF Downloads : 0

A. Kozłowska polimery@ichp.pl

Affiliation
Politechnika Szczecińska, Instytut Polimerów, ul. Pułaskiego 10, 70-310 Szczecin

J. Majszczyk

Affiliation
Politechnika Szczecińska, Instytut Fizyki, al. Piastów 48/49, 70-310 Szczecin