The effect of long-term natural aging on the iPB-1 structure and the II – I phase transformation rate
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F21%3A63526194" target="_blank" >RIV/70883521:28610/21:63526194 - isvavai.cz</a>
Alternative codes found
RIV/70883521:28110/21:63526194 RIV/61989592:15310/21:73602300
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0141391020303669" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0141391020303669</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.polymdegradstab.2020.109437" target="_blank" >10.1016/j.polymdegradstab.2020.109437</a>
Alternative languages
Result language
angličtina
Original language name
The effect of long-term natural aging on the iPB-1 structure and the II – I phase transformation rate
Original language description
The long-term natural aging of isotactic polybutene-1 samples of different molecular weight has shown that the transformation rate from the initial phase II to the stable phase I significantly decreased after natural aging, ranging from 0 to 17 years. It was found that the total crystallinity decreased with aging time and a small amount of phase II remained untransformed for at least 17 years. The transformation rate of a lower molecular weight sample, DP 0400, was higher than the PB 0110 sample, even after repeated polymer melting of aged samples and their new melt crystallization. The major phenomenon of the iPB-1 aging is the change in a ratio of methyl/methylene functional groups; possibly because of a side chain splitting that reduces the geometric regularity of the molecular chain and consecutively slows down the proceeding phase transformation.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10404 - Polymer science
Result continuities
Project
<a href="/en/project/LTAUSA19066" target="_blank" >LTAUSA19066: A study of polymeric memristors based on methacrylate polymers with pendant carbazole moieties</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Polymer Degradation and Stability
ISSN
0141-3910
e-ISSN
—
Volume of the periodical
183
Issue of the periodical within the volume
Neuveden
Country of publishing house
GB - UNITED KINGDOM
Number of pages
9
Pages from-to
—
UT code for WoS article
000614146200033
EID of the result in the Scopus database
2-s2.0-85097105381