2017
DOI: 10.1002/macp.201700177
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Metathesis Curing of Allylated Lignin and Different Plant Oils for the Preparation of Thermosetting Polymer Films with Tunable Mechanical Properties

Abstract: Lignin and plant oils—two highly available renewable feedstocks—are cured via olefin metathesis to produce thermosetting polymer films with tunable mechanical properties. Therefore, an organosolv lignin, allylated in a recently described sustainable approach, is used. For the first time, unmodified plant oils are reacted with a lignin derivative. An increasing lignin content as well as an increasing amount of polyunsaturated fatty acids in the plant oil structure lead to higher Young's moduli and higher cross‐… Show more

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Cited by 10 publications
(9 citation statements)
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“…The two bands corresponding to the deformation vibration of a double bond (−CHCH 2 ) appeared at 990 and 925 cm –1 . , The typical aromatic CC stretching vibration absorption bands at 1585 and 1510 cm –1 were present in both the unmodified fraction and allylated lignin. The methoxy groups present in KL_EtOH remained unchanged after chemical modification and showed two absorption bands at 1455 and 1420 cm –1 …”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…The two bands corresponding to the deformation vibration of a double bond (−CHCH 2 ) appeared at 990 and 925 cm –1 . , The typical aromatic CC stretching vibration absorption bands at 1585 and 1510 cm –1 were present in both the unmodified fraction and allylated lignin. The methoxy groups present in KL_EtOH remained unchanged after chemical modification and showed two absorption bands at 1455 and 1420 cm –1 …”
Section: Resultsmentioning
confidence: 99%
“…The methoxy groups present in KL_EtOH remained unchanged after chemical modification and showed two absorption bands at 1455 and 1420 cm −1 . 46 The morphological characteristics of KL_Initial, KL_EtOH and A-KL_EtOH were studied by SEM, and images are illustrated in Figure 1 and Figure S9. Initial powdery lignin particles exhibit near spherical geometry with a size of a few micrometers to hundreds of micrometers, with a high surface roughness (Figure 1A, B).…”
Section: ■ Results and Discussionmentioning
confidence: 99%
“…Incorporating lignin in material systems has been examined in various ways ranging from filler components over thermoplastics to thermosets. This often requires chemical modification of the lignin to introduce chemical handles for further reactions or to compatibilize it with, for example, polymer matrices. The multifunctionality of lignin makes it versatile in terms of possibilities for chemical modification.…”
Section: Introductionmentioning
confidence: 99%
“…After extraction, the insoluble portion was dried in an oven at 60 °C for 12 h. The remaining solution was concentrated under reduced pressure and dried in vacuo . The soluble percentage of the thermoset films was calculated using eq where m 0 is the initial weight and m 1 is the dry weight after extraction.…”
Section: Methodsmentioning
confidence: 99%