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- W4310209054 abstract "Abstract Development of more sustainable and environmentally friendly polymers as alternatives to petroleum‐based polymers is a priority. We report the synthesis of six linear, aliphatic, renewable polymers by acyclic diene metathesis (ADMET) and thiol‐ene polymerization of α,ω‐polyenes resulting from thermal esterification of adipic, azelaic, and itaconic acids with 9‐decen‐1‐ol. ADMET homopolymerization was performed with 1.0 mol% Hoveyda–Grubbs second generation metathesis catalyst. Thiol‐ene copolymerization was conducted photochemically with 1 wt% 2,2‐dimethoxy‐2‐phenyl‐acetophenone and stoichiometric 1,2‐ethanedithiol (EDT). Although the thiol‐ene copolymers exhibited carbon and atom economies of 100%, the ADMET‐derived polyesters possessed superior renewable carbon content (100%) and environmental factors (<4). These results were attributed to incorporation of non‐renewable EDT into poly(thioether‐ester)s and loss of ethene during production of ADMET polyesters. The M n (>26 kDa), M w (>92 kDa), and dispersities (>3.4) of the poly(thioether‐ester)s were higher than the corresponding polyesters, which in part explained why the poly(thioether‐ester)s gave higher melting (>61°C), crystallization (>49°C) and glass transition (>−31°C) temperatures. The cross‐linked itaconate polymers did not melt or crystallize, thereby suggesting amorphous morphology. Lastly, the ADMET polyesters were more thermally stable ( T 50 > 408°C) than the poly(thioether‐ester)s ( T 50 < 377°C). In summary, the aliphatic biopolymers displayed a wide range of properties that were impacted by polymerization method as well as the nature of the monomer." @default.
- W4310209054 created "2022-11-30" @default.
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- W4310209054 date "2022-11-28" @default.
- W4310209054 modified "2023-10-02" @default.
- W4310209054 title "Comparison of aliphatic polyesters prepared by acyclic diene metathesis and thiol‐ene polymerization of α,ω‐polyenes arising from oleic acid‐based 9‐decen‐1‐ol" @default.
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- W4310209054 doi "https://doi.org/10.1002/aocs.12668" @default.
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