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

M. Bhuvaneshwaran, P. S. Sampath, Suresh Sagadevan, Influence of fiber length, fiber content and alkali treatment on mechanical properties of natural fiber-reinforced epoxy composites , Polimery: Vol. 64 No. 2 (2019)
S. Kuciel, A. Liber-Kneć, Biocomposites based on PHB filled with wood or kenaf fibers , Polimery: Vol. 56 No. 3 (2011)
Mohd Adly Rahmat Saat, Rozaidi Rasid, Maria Abu Bakar, Azman Jalar, Emee Marina Salleh, Mechanical properties of PE-PET-PS-PP blends produced by high shear mixing , Polimery: Vol. 64 No. 10 (2019)
A. I. Khalaf, A. A. Ward, A. E. Abd El-Kader, S. H. El-Sabbagh, Effect of selected vegetable oils on the properties of acrylonitrile-butadiene rubber vulcanizates , Polimery: Vol. 60 No. 1 (2015)
P. Czub, I. Franek, Epoxy resins modified with palm oil derivatives — preparation and properties , Polimery: Vol. 58 No. 2 (2013)
Małgorzata Szymiczek, Monika Chomiak, Błażej Chmielnicki, Sara Sarraj, Paulina Gołuch, The influence of accelerated aging on selected mechanical properties of polypropylene with organic fillers , Polimery: Vol. 67 No. 7-8 (2022)
M. M. A. Nikje, M. Noruzian, S. T. Moghaddam, Investigation of Fe304/AEAP supermagnetic nanoparticles on the morphological, thermal and magnetite behavior of polyurethane rigid foam nanocomposites , Polimery: Vol. 60 No. 1 (2015)
B. Mossety-Leszczak, M. Włodarska, H. Galina, M. Dutkiewicz, Thermal and dielectric properties of silsesquioxanes containing mesogenic azo groups , Polimery: Vol. 58 No. 10 (2013)
J. Pach, J. W. Kaczmar, Influence of the chemical modification of hemp fibers on selected mechanical properties of polypropylene composite materials , Polimery: Vol. 56 No. 5 (2011)
Maciej Mrówka, Małgorzata Szymiczek, Tomasz Machoczek, Joanna Lenża, Jakub Matusik, Piotr Sakiewicz, Magdalena Skonieczna, The influence of halloysite on the physicochemical, mechanical and biological properties of polyurethane- -based nanocomposites , Polimery: Vol. 65 No. 11-12 (2020)

<< < 14 15 16 17 18 19 20 21 22 23 > >>

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