Influence of carboxytelechelic oligomer molecular weight on the properties of chain extended polyethylenes

Anastasia S. Arrington; Timothy E. Long

doi:10.1016/j.polymer.2022.125319

Influence of carboxytelechelic oligomer molecular weight on the properties of chain extended polyethylenes

Anastasia S. Arrington, Timothy E. Long

Molecular Sciences, School of (SMS)

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Chain-transfer ring-opening metathesis polymerization (CT-ROMP) previously provided a route to carboxytelechelic polyethylene (PE) of controlled molecular weight; however, the incorporation of oligomeric PE into chain-extended copolymers remains relatively unexplored. Herein, CT-ROMP afforded carboxytelechelic polycyclooctene oligomers of varying molecular weight, and subsequent reduction generated a series of well-defined carboxytelechelic PEs. Melt polycondensation of the telechelic PE oligomers with either 1,6-hexanediamine or 1,6-hexanediol chain extenders generated diester and diamide linked PEs to further understand the influence of linkage structure. The thermomechanical and tensile properties of the step-growth polymers exhibited remarkably similar performance to conventional HDPE independent of PE oligomer molecular weight. The chain extended PEs displayed advantageous physical properties while introducing susceptibility to chemolytic depolymerization, tunable via periodic ester or amide linkages, thus providing valuable fundamental understanding of an alternative route to degradable HDPE.

Original language	English (US)
Article number	125319
Journal	Polymer
Volume	259
DOIs	https://doi.org/10.1016/j.polymer.2022.125319
State	Published - Oct 27 2022

Keywords

Polyamide
Polycondensation
Polyester
Polyethylene
Ring-opening metathesis

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Materials Chemistry

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10.1016/j.polymer.2022.125319

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title = "Influence of carboxytelechelic oligomer molecular weight on the properties of chain extended polyethylenes",

abstract = "Chain-transfer ring-opening metathesis polymerization (CT-ROMP) previously provided a route to carboxytelechelic polyethylene (PE) of controlled molecular weight; however, the incorporation of oligomeric PE into chain-extended copolymers remains relatively unexplored. Herein, CT-ROMP afforded carboxytelechelic polycyclooctene oligomers of varying molecular weight, and subsequent reduction generated a series of well-defined carboxytelechelic PEs. Melt polycondensation of the telechelic PE oligomers with either 1,6-hexanediamine or 1,6-hexanediol chain extenders generated diester and diamide linked PEs to further understand the influence of linkage structure. The thermomechanical and tensile properties of the step-growth polymers exhibited remarkably similar performance to conventional HDPE independent of PE oligomer molecular weight. The chain extended PEs displayed advantageous physical properties while introducing susceptibility to chemolytic depolymerization, tunable via periodic ester or amide linkages, thus providing valuable fundamental understanding of an alternative route to degradable HDPE.",

keywords = "Polyamide, Polycondensation, Polyester, Polyethylene, Ring-opening metathesis",

author = "Arrington, {Anastasia S.} and Long, {Timothy E.}",

note = "Funding Information: We gratefully acknowledge James Brown for his assistance with SEC analysis and the Biodesign Center for Sustainable Macromolecular Materials and Manufacturing (SM3) in addition to the School of Molecular Sciences for financial support of this work. Publisher Copyright: {\textcopyright} 2022",

year = "2022",

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day = "27",

doi = "10.1016/j.polymer.2022.125319",

language = "English (US)",

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AU - Arrington, Anastasia S.

AU - Long, Timothy E.

N1 - Funding Information: We gratefully acknowledge James Brown for his assistance with SEC analysis and the Biodesign Center for Sustainable Macromolecular Materials and Manufacturing (SM3) in addition to the School of Molecular Sciences for financial support of this work. Publisher Copyright: © 2022

PY - 2022/10/27

Y1 - 2022/10/27

N2 - Chain-transfer ring-opening metathesis polymerization (CT-ROMP) previously provided a route to carboxytelechelic polyethylene (PE) of controlled molecular weight; however, the incorporation of oligomeric PE into chain-extended copolymers remains relatively unexplored. Herein, CT-ROMP afforded carboxytelechelic polycyclooctene oligomers of varying molecular weight, and subsequent reduction generated a series of well-defined carboxytelechelic PEs. Melt polycondensation of the telechelic PE oligomers with either 1,6-hexanediamine or 1,6-hexanediol chain extenders generated diester and diamide linked PEs to further understand the influence of linkage structure. The thermomechanical and tensile properties of the step-growth polymers exhibited remarkably similar performance to conventional HDPE independent of PE oligomer molecular weight. The chain extended PEs displayed advantageous physical properties while introducing susceptibility to chemolytic depolymerization, tunable via periodic ester or amide linkages, thus providing valuable fundamental understanding of an alternative route to degradable HDPE.

AB - Chain-transfer ring-opening metathesis polymerization (CT-ROMP) previously provided a route to carboxytelechelic polyethylene (PE) of controlled molecular weight; however, the incorporation of oligomeric PE into chain-extended copolymers remains relatively unexplored. Herein, CT-ROMP afforded carboxytelechelic polycyclooctene oligomers of varying molecular weight, and subsequent reduction generated a series of well-defined carboxytelechelic PEs. Melt polycondensation of the telechelic PE oligomers with either 1,6-hexanediamine or 1,6-hexanediol chain extenders generated diester and diamide linked PEs to further understand the influence of linkage structure. The thermomechanical and tensile properties of the step-growth polymers exhibited remarkably similar performance to conventional HDPE independent of PE oligomer molecular weight. The chain extended PEs displayed advantageous physical properties while introducing susceptibility to chemolytic depolymerization, tunable via periodic ester or amide linkages, thus providing valuable fundamental understanding of an alternative route to degradable HDPE.

KW - Polyamide

KW - Polycondensation

KW - Polyester

KW - Polyethylene

KW - Ring-opening metathesis

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Influence of carboxytelechelic oligomer molecular weight on the properties of chain extended polyethylenes

Abstract

Keywords

ASJC Scopus subject areas

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