Increasing the solubility range of polyesters by tuning their microstructure with co-monomers

Marie Delgove; Juandré Luchies; Iris Wauters; Geert G.P. Deroover; Katrien Bernaerts; Stefaan de Wildeman

Increasing the solubility range of polyesters by tuning their microstructure with co-monomers

Marie Delgove, Juandré Luchies, Iris Wauters, Geert G.P. Deroover, Katrien Bernaerts, Stefaan de Wildeman

Research output: Contribution to conference › Abstract › Academic

Abstract

ω-Pentadecalactone (PDL) is a biobased 16-membered macrolactone that can be derived from renewable resources. Its regular structure makes it highly crystalline and thus interesting as a biobased replacement for linear low density polyethylene. However, its solubility is very limited (chloroform) which hinders the use of PDL polymers in other applications requiring large solubility range. Co-polymerization with a branched lactone is one way to reduce crystallinity because it is expected to disrupt the co-polyesters’ microstructure. Nevertheless, it has been shown that the microstructure of PDL-based co-polyesters varies depending on the co-monomer structure. A block co-polyester is obtained with branched lactones while a random structure is obtained with unsubstituted lactones of various size.
It was attempted to break the crystallinity of PDL-based co-polyesters with a view of increasing their solubility range. Therefore, PDL was copolymerized with the branched and biobased δ-undecalactone (UDL), whose homopolymer is amorphous. In order to obtain random microstructure rather than block-like, several monomer addition strategies were investigated. Monomer distribution within the PDL-co-UDL polyesters was assessed by 13C NMR. It was observed that crystallinity of the co-polyesters was decreased but not suppressed as measured by DSC, partially because they did not display a fully random monomer order. Hansen solubility parameters determination however showed that the solubility range of the co-polyesters was improved compared to PDL homopolymers.

Original language	English
Publication status	Published - 12 May 2017

Cite this

@conference{fe48ee3960fc42d4885cbfa6cb1230ef,

title = "Increasing the solubility range of polyesters by tuning their microstructure with co-monomers",

abstract = "ω-Pentadecalactone (PDL) is a biobased 16-membered macrolactone that can be derived from renewable resources. Its regular structure makes it highly crystalline and thus interesting as a biobased replacement for linear low density polyethylene. However, its solubility is very limited (chloroform) which hinders the use of PDL polymers in other applications requiring large solubility range. Co-polymerization with a branched lactone is one way to reduce crystallinity because it is expected to disrupt the co-polyesters{\textquoteright} microstructure. Nevertheless, it has been shown that the microstructure of PDL-based co-polyesters varies depending on the co-monomer structure. A block co-polyester is obtained with branched lactones while a random structure is obtained with unsubstituted lactones of various size.It was attempted to break the crystallinity of PDL-based co-polyesters with a view of increasing their solubility range. Therefore, PDL was copolymerized with the branched and biobased δ-undecalactone (UDL), whose homopolymer is amorphous. In order to obtain random microstructure rather than block-like, several monomer addition strategies were investigated. Monomer distribution within the PDL-co-UDL polyesters was assessed by 13C NMR. It was observed that crystallinity of the co-polyesters was decreased but not suppressed as measured by DSC, partially because they did not display a fully random monomer order. Hansen solubility parameters determination however showed that the solubility range of the co-polyesters was improved compared to PDL homopolymers. ",

author = "Marie Delgove and Juandr{\'e} Luchies and Iris Wauters and Deroover, {Geert G.P.} and Katrien Bernaerts and {de Wildeman}, Stefaan",

year = "2017",

month = may,

day = "12",

language = "English",

}

TY - CONF

T1 - Increasing the solubility range of polyesters by tuning their microstructure with co-monomers

AU - Delgove, Marie

AU - Luchies, Juandré

AU - Wauters, Iris

AU - Deroover, Geert G.P.

AU - Bernaerts, Katrien

AU - de Wildeman, Stefaan

PY - 2017/5/12

Y1 - 2017/5/12

N2 - ω-Pentadecalactone (PDL) is a biobased 16-membered macrolactone that can be derived from renewable resources. Its regular structure makes it highly crystalline and thus interesting as a biobased replacement for linear low density polyethylene. However, its solubility is very limited (chloroform) which hinders the use of PDL polymers in other applications requiring large solubility range. Co-polymerization with a branched lactone is one way to reduce crystallinity because it is expected to disrupt the co-polyesters’ microstructure. Nevertheless, it has been shown that the microstructure of PDL-based co-polyesters varies depending on the co-monomer structure. A block co-polyester is obtained with branched lactones while a random structure is obtained with unsubstituted lactones of various size.It was attempted to break the crystallinity of PDL-based co-polyesters with a view of increasing their solubility range. Therefore, PDL was copolymerized with the branched and biobased δ-undecalactone (UDL), whose homopolymer is amorphous. In order to obtain random microstructure rather than block-like, several monomer addition strategies were investigated. Monomer distribution within the PDL-co-UDL polyesters was assessed by 13C NMR. It was observed that crystallinity of the co-polyesters was decreased but not suppressed as measured by DSC, partially because they did not display a fully random monomer order. Hansen solubility parameters determination however showed that the solubility range of the co-polyesters was improved compared to PDL homopolymers.

AB - ω-Pentadecalactone (PDL) is a biobased 16-membered macrolactone that can be derived from renewable resources. Its regular structure makes it highly crystalline and thus interesting as a biobased replacement for linear low density polyethylene. However, its solubility is very limited (chloroform) which hinders the use of PDL polymers in other applications requiring large solubility range. Co-polymerization with a branched lactone is one way to reduce crystallinity because it is expected to disrupt the co-polyesters’ microstructure. Nevertheless, it has been shown that the microstructure of PDL-based co-polyesters varies depending on the co-monomer structure. A block co-polyester is obtained with branched lactones while a random structure is obtained with unsubstituted lactones of various size.It was attempted to break the crystallinity of PDL-based co-polyesters with a view of increasing their solubility range. Therefore, PDL was copolymerized with the branched and biobased δ-undecalactone (UDL), whose homopolymer is amorphous. In order to obtain random microstructure rather than block-like, several monomer addition strategies were investigated. Monomer distribution within the PDL-co-UDL polyesters was assessed by 13C NMR. It was observed that crystallinity of the co-polyesters was decreased but not suppressed as measured by DSC, partially because they did not display a fully random monomer order. Hansen solubility parameters determination however showed that the solubility range of the co-polyesters was improved compared to PDL homopolymers.

M3 - Abstract

ER -