Novel environmentally sustainable xylitol-based plasticizer: synthesis and application

Hou, B. Y.; Ren, Liang; Fu, Dongsheng; Jiang, Ying; Zhang, M. Y.; Zhang, H. X.

doi:10.1007/s10965-021-02694-9

Cited by 11 publications

(7 citation statements)

References 26 publications

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“…Compared with the PLA/PBS (70/30) bio-blend, the PLA/PBS/ESO (66.5/28.5/5) blend exhibited fewer microcracks, and some fibrils emerged in region I in the SEM images. The formation of fibrils and microvoids confirmed that the PLA/PBS/ESO (66.5/28.5/5) blend exhibited some plastic deformation . Although the ESO plasticizer slightly improved the toughness, the fractured surface remained brittle because the ternary blends exhibited limited compatibility.…”

Section: Resultsmentioning

confidence: 78%

“…The WAXD patterns of the PLA, PBS, and ESO blends are shown in Figure S3. Diffraction peaks at 2θ = 19.9, 22.9, and 29.1° corresponded to the (020), (110), and (111) crystal planes, respectively, and the inconspicuous diffraction peak at 2θ = 22.2° corresponded to the (021) plane of pure PBS. The WAXD pattern of the pure PLA exhibited broad peaks at 2θ = 16.9 and 32.2° corresponding to the (110)/(200) and (1010) crystal planes, respectively, indicating that because it slowly crystallized, PLA was amorphous in the bio-blends .…”

Section: Resultsmentioning

confidence: 99%

“…Among them, PBS is a good flexible polymer for toughening PLA because PBS exhibits biodegradability, high ductility, favorable heat resistance, and easy melt-processability. 1,10 Many measures have been applied to promote the compatibility of PLA/PBS blends, 11 introducing the introduction of reduced graphene oxide nanoparticles; 12 addition of plasticizers, e.g., poly(ester adipate) (G40), 13 poly(ethylene glycol) (PEG), 14 fatty acids, 15 (AXP), 16 and isosorbide diester (ISE); 17 introduction of a block or random copolymer of PBS-co-PLA; 18,19 and compatibilization in situ, such as the incorporation of ethylene−methyl acrylate−glycidyl methacrylate (EGMA) copolymer, 20 polyaryl polymethylene isocyanate (PAPI), 21 dicumyl peroxide (DCP), 22 and dibenzoyl peroxide (BPO). 23 Phetwarotai et al 24 found that toluene diisocyanate (TDI) improved the compatibility and increased the tensile strength and stiffness of PBS and PLA bio-blends.…”

Section: ■ Introductionmentioning

confidence: 99%

“…The elastic modulus of the PLA/PBS (70/ 30) bio-blend was reduced to 1077 MPa, which was attributed to the introduction of flexible PBS chains. Additionally, Hou et al 16 found that the elastic modulus of the PLA/PBS (70/30) bio-blend was ∼1000 MPa. The elastic moduli of PLA/PBS/ ESO blends decreased somewhat compared with that of the PLA/PBS bio-blend because the ESO plasticizer reduced the number of interchain interactions and increased the free volume by interspersing between PBS and PLA chains, which decreased both the stiffness and rigidity of PLA/PBS/ESO blends.…”

Section: ■ Introductionmentioning

confidence: 99%

“…The formation of fibrils and microvoids confirmed that the PLA/PBS/ESO (66.5/28.5/5) blend exhibited some plastic deformation. 16 Although the ESO plasticizer slightly improved the toughness, the fractured surface remained brittle because the ternary blends exhibited limited compatibility.…”

Section: ■ Introductionmentioning

confidence: 99%

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Preparation of Supertough Polylactide/Polybutylene Succinate/Epoxidized Soybean Oil Bio-Blends by Chain Extension

Dou

2023

ACS Sustainable Chem. Eng.

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Poly(lactic acid) (PLA) was toughened using ductile biodegradable poly(butylene succinate) (PBS) and biobased epoxidized soybean oil (ESO). A reactive reagent (Joncryl ADR 4370 S) was introduced for preparing reactive compatibilized bio-blends by melt-processing in situ. The compatibility, rheology, crystallization, mechanical properties, and microstructures of the PLA, PBS, and ESO bio-blends were measured using theoretical compatibility predication, Fourier transform infrared (FTIR) spectroscopy, dynamic mechanical analysis (DMA), dynamic rheological analysis, wide-angle X-ray diffraction (WAXD), mechanical tests, field-emission scanning electron microscopy (FESEM), and optical stereomicroscopy (OM). The introduction of 4370 S induced “graft copolymerization in situ” among PLA, PBS, and ESO and considerably improved the bio-blend compatibility. The PBS and PLA crystal structures were not altered, while the PBS crystallinity reduced in the bio-blends because of chain extensions among the components. The refined PBS particles and evenly distributed ESO drops in the PLA matrix were ascribed to enhanced adhesion and improved compatibility due to the “formation of graft copolymers in situ”. Owing to the combination of ESO and 4370 S, the supertough PLA and PBS bio-blends exhibited a tensile strain at break and notched impact strength above 300% and 30 kJ/m2, respectively.

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Section: Resultsmentioning

confidence: 78%