Synthesis and properties of biomass eugenol-functionalized isotactic poly(1-butene)s

Cui, Xiaopeng; Gu, Gaosheng; Li, Chuang; Liu, Ning; Gong, Yanfeng; Liu, Binyuan

doi:10.1016/j.polymer.2020.122739

Cited by 11 publications

(6 citation statements)

References 47 publications

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“…Sample P3 contains mainly estragole and eugenol in the same proportion Estragole is one of the natural present phenylpropanoids, having antifungal and antioxidant properties [57]. Eugenol is used in medical applications (as antiseptic, anaesthetic, in dentistry) [58,59]. The highest percent in limonene was obtained for the P4 sample.…”

Section: Discussionmentioning

confidence: 99%

Comparative Study of Useful Compounds Extracted from Lophanthus anisatus by Green Extraction

Stefan

Popescu

Luntraru³

et al. 2022

Molecules

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Essential oils were obtained from different parts of Agastache foeniculum (Lophanthus anisatus) plants by means of extraction: green extraction using hydro-distillation (HD) and bio-solvent distillation, BiAD, discontinuous distillation, and supercritical fluid extraction, in two stages: (1) with CO2, and (2) with CO2 and ethanol co-solvent. The extraction yields were determined. The yield values varied for different parts of the plant, as well as the method of extraction. Thus, they had the values of 0.62 ± 0.020 and 0.92 ± 0.015 g/100 g for the samples from the whole aerial plant, 0.75 ± 0.008 and 1.06 ± 0.005 g/100 g for the samples of leaves, and 1.22 ± 0.011 and 1.60 ± 0.049 g/100 g for the samples of flowers for HD and BiAD, respectively. The yield values for supercritical fluid extraction were of 0.94 ± 0.010 and 0.32 ± 0.007 g/100 g for the samples of whole aerial plant, 0.9 ± 0.010 and 1.14 ± 0.008 g/100 g for the samples of leaves, and 1.94 ± 0.030 and 0.57 ± 0.003 g/100 g for the samples of flowers, in the first and second stages, respectively. The main components of Lophanthus anisatus were identified as: estragon, limonene, eugenol, chavicol, benzaldehyde, and pentanol. The essential oil from Agatache foeniculum has antimicrobial effects against Staphylococcus aureus, the Escherichia coli and Pseudomonas aeruginosa. Acclimatization of Lophantus anisatus in Romania gives it special qualities by concentrating components such as: estragole over 93%, limonene over 8%, especially in flowers; and chavicol over 14%, estragole over 30%, eugenol and derivatives (methoxy eugenol, methyl eugenol, etc.) over 30% and phenyl ether alcohol over 20% in leaves. As a result of the research carried out, it was proven that Lophanthus anisatus can be used as a medicinal plant for many diseases, it can be used as a spice and preservative for various foods, etc.

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Section: Discussionmentioning

confidence: 99%

Comparative Study of Useful Compounds Extracted from Lophanthus anisatus by Green Extraction

Stefan

Popescu

Luntraru³

et al. 2022

Molecules

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“…While the incorporation of polar monomer eugenol is low (~0.62 mol%), it is adequate to improve the thermal-oxidative stability of the polymer. 62 Eugenol, as a polar allylbenzene monomer, has been reported to copolymerize with ethylene mediated by late transition metals which have no stereoselectivity for -olefin polymerization. 63 In contrast to the case for PP, polystyrene of atactic type (aPS) has better commercial applications than its syndio-and isotactic counterparts.…”

Section: Stereoselective Copolymerization Of -Olefins With Polar Mon...mentioning

confidence: 99%

Stereoselective Copolymerization of Olefin with Polar Monomers to Access Stereoregular Functionalized Polyolefins

Jian

2022

Organic Materials

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Introducing polar functionalities to polyolefin such as polyethylene and polypropylene is highly desired for improving physical properties of the otherwise non-polar material. The synthesis of stereoregular functionalized polyolefins, however, has been a relatively underdeveloped area compared to that of functionalized polyethylene because of the lack of suitable catalysts that tolerate polar groups while possessing stereoselectivity. This review summarizes recent advances concerning the access to stereoregular functionalized polyolefins, including synthetic strategies such as post-functionalization, chain transfer and direct copolymerization methods. The focus of the review lies in the copolymerization approach, in which various polar comonomers and versatile stereoselective polymerization catalysts based on both early and late transition metals are involved. Polymer properties and potential applications for these materials are simply discussed.

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“…The presence of EG co-units limited the crystallization rate of iPB-1 and retarded the crystal transformation of II–I. 35 However, most of the studies on slowing down the crystal transition rate of PB-1 mainly focus on the copolymerization of 1-butene and comonomer, and there were few reports on limited the crystalline transformation by blending.…”

Section: Introductionmentioning

confidence: 99%

Retarding crystal transitions of polybutene-1 in blends

Cui,

Li,

Liu

et al. 2023

CrystEngComm

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Synthesis and properties of biomass eugenol-functionalized isotactic poly(1-butene)s

Cited by 11 publications

References 47 publications

Comparative Study of Useful Compounds Extracted from Lophanthus anisatus by Green Extraction

Comparative Study of Useful Compounds Extracted from Lophanthus anisatus by Green Extraction

Stereoselective Copolymerization of Olefin with Polar Monomers to Access Stereoregular Functionalized Polyolefins

Retarding crystal transitions of polybutene-1 in blends

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