The Effect of Polymer Structures on Complete Degradation: A First‐Principles Study
Abstract: The widespread application of hydrocarbon polymer materials has spurred an increasing interest in the study of their dissociation mechanism, which is related to key issues such as environmental protection. In this work, the last‐step dissociation characteristics of carbon chain polymers were investigated. By using density functional theory, we considered all possible structures, including three typical normal linkage polymers and four typical abnormal linkage ones. In these structures, it can be found that the energy barrier required for the complete degradation of chain‐end saturated and unsaturated polymers are in the range of 3.42 to 4.78 eV and 0.35 to 1.31 eV, respectively. It shows that the unsaturated polymer is easier to degrade. Interestingly, as for three linkages of the polymer, the calculated results further suggest that the energy barrier of head‐to‐head, head‐to‐tail, and tail‐to‐tail linkages of the polymer dissociating to produce the monomer increase, no matter if the chain‐end is saturated or not. Therefore, we form a regular understanding of how to achieve the complete degradation of the polymer. In addition, analyses of the bond characteristics and electronic structures agree with the results of the energy barrier measurements. Meanwhile, the spin population analysis presents an obvious net spin transfer process in depolymerization reactions. We hope that the current results can provide a basic insight into polymer degradation.
- Standort
-
Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
-
Online-Ressource
- Sprache
-
Englisch
- Erschienen in
-
The Effect of Polymer Structures on Complete Degradation: A First‐Principles Study ; volume:7 ; number:6 ; year:2018 ; pages:463-466 ; extent:4
ChemistryOpen ; 7, Heft 6 (2018), 463-466 (gesamt 4)
- Urheber
- DOI
-
10.1002/open.201800078
- URN
-
urn:nbn:de:101:1-2022091206440374958400
- Rechteinformation
-
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
-
15.08.2025, 07:29 MESZ
Datenpartner
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Beteiligte
- Zhu, Yu
- Zhang, Depeng
- Zhang, Zhanwen
- Wang, Zhigang
Ähnliche Objekte (12)
Inference in nonparametric/semiparametric moment equality models with shape restrictions
Existence for the Hénon Equation Involving the Fractional Laplacian
In Situ Urbanization in China: Processes, Contributing Factors, and Policy Implications
Existence of positive periodic solutions for super-linear neutral Liénard equation with a singularity of attractive type
Existence of positive periodic solutions for Liénard equation with a singularity of repulsive type
English Deficiency and the Native-Immigrant Wage Gap
Monetary policy pass-through with central bank digital currency
The effect of education on marital status and partner characteristics: Evidence from the UK
Precautionary savings by natives and immigrants in Germany
Child support and partnership dissolution: Evidence from the UK
Precautionary Savings by Natives and Immigrants in Germany
Overqualification, job dissatisfaction, and increasing dispersion in the returns to graduate education
Inference in nonparametric/semiparametric moment equality models with shape restrictions
Existence for the Hénon Equation Involving the Fractional Laplacian
In Situ Urbanization in China: Processes, Contributing Factors, and Policy Implications
Existence of positive periodic solutions for super-linear neutral Liénard equation with a singularity of attractive type
Existence of positive periodic solutions for Liénard equation with a singularity of repulsive type
English Deficiency and the Native-Immigrant Wage Gap
Monetary policy pass-through with central bank digital currency
The effect of education on marital status and partner characteristics: Evidence from the UK
Precautionary savings by natives and immigrants in Germany
Child support and partnership dissolution: Evidence from the UK
Precautionary Savings by Natives and Immigrants in Germany
Overqualification, job dissatisfaction, and increasing dispersion in the returns to graduate education
Inference in nonparametric/semiparametric moment equality models with shape restrictions
Existence for the Hénon Equation Involving the Fractional Laplacian
In Situ Urbanization in China: Processes, Contributing Factors, and Policy Implications
Existence of positive periodic solutions for super-linear neutral Liénard equation with a singularity of attractive type
Existence of positive periodic solutions for Liénard equation with a singularity of repulsive type
English Deficiency and the Native-Immigrant Wage Gap
Monetary policy pass-through with central bank digital currency
The effect of education on marital status and partner characteristics: Evidence from the UK
Precautionary savings by natives and immigrants in Germany
Child support and partnership dissolution: Evidence from the UK
Precautionary Savings by Natives and Immigrants in Germany