Temperature dependence of the rigid amorphous fraction of poly(butylene succinate)

Righetti, Maria Cristina; Lorenzo, Maria Laura Di; Cinelli, Patrizia; Gazzano, Massimo

doi:10.1039/d1ra03775g

Cited by 12 publications

(9 citation statements)

References 66 publications

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“…In fact, poly(alkylene succinate)s are polyesters with a high crystalline content, while their thermal and mechanical properties mainly depend on the length of the methylene groups sequences in the polymer repeating unit [16,17]. The most commonly investigated PnASs are poly(ethylene succinate) (PESu), poly(propylene succinate) (PPSu), and poly(butylene succinate) (PBSu), with methylene group numbers in the diol segment n = 2, 3, and 4, respectively, presenting by far the most famous members of this class [1,7,11,16,[18][19][20][21][22][23][24][25][26][27][28][29][30][31]. Within this context, PPSu was extensively studied by our team [6,16,32] due to its high biodegradability, and mainly its "green origin".…”

Section: Introductionmentioning

confidence: 99%

Thermal Stability and Decomposition Mechanism of Poly(alkylene succinate)s

et al. 2022

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In the present study, a series of aliphatic polyesters based on succinic acid and several diols with 2, 4, 6, 8, and 10 methylene groups, namely poly(ethylene succinate) (PESu), poly(butylene succinate) (PBSu), poly(hexylene succinate) (PHSu), poly(octylene succinate) (POSu), and poly(decylene succinate) (PDeSu), were prepared via a two-stage melt polycondensation method. All polyesters were semicrystalline materials with Tm ranging from 64.2 to 117.8 °C, while their Tg values were progressively decreasing by increasing the methylene group number in the used diols. Thermogravimetric analysis (TGA) revealed that the synthesized poly(alkylene succinate)s present high thermal stability with maximum decomposition rates at temperatures 420–430 °C. The thermal decomposition mechanism was also evaluated with the aid of Pyrolysis–Gas chromatography/Mass spectrometry (Py–GC/MS), proving that all the studied polyesters decompose via a similar pathway, with degradation taking place mainly via β–hydrogen bond scission and less extensive with homolytic scission.

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Section: Introductionmentioning

confidence: 99%

Thermal Stability and Decomposition Mechanism of Poly(alkylene succinate)s

et al. 2022

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“…∆H 0,PLA , ∆H 0,PBS , and ∆H 0,PBAT denoted the enthalpy of fusion values for 100% crystalline polymers. The theoretical values ∆H 0 of PLA, PBS, and PBAT are 93.1, 200, and 114 J g −1 , respectively [42,[51][52][53][54].…”

Section: Xrd Measurement Resultsmentioning

confidence: 93%

Bio-Based PLA/PBS/PBAT Ternary Blends with Added Nanohydroxyapatite: A Thermal, Physical, and Mechanical Study

Chen,

Mao

et al. 2023

Polymers

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The physical and mechanical properties of novel bio-based polymer blends of polylactic acid (PLA), poly(butylene succinate) (PBS), and poly (butylene adipate-co-terephthalate) (PBAT) with various added amounts of nanohydroxyapatite (nHA) were investigated in this study. The formulations of PLA/PBS/PBAT/nHA blends were divided into two series, A and B, containing 70 or 80 wt% PLA, respectively. Samples of four specimens per series were prepared using a twin-screw extruder, and different amounts of nHA were added to meet the regeneration needs of bone graft materials. FTIR and XRD analyses were employed to identify the presence of each polymer and nHA in the various blends. The crystallization behavior of these blends was examined using DSC. Tensile and impact strength tests were performed on all samples to screen feasible formulations of polymer blends for bone graft material applications. Surface morphology analyses were conducted using SEM, and the dispersion of nHA particles in the blends was further tested using TEM. The added nHA also served as a nucleating agent aimed at improving the crystallinity and mechanical properties of the blends. Through the above analyses, the physical and mechanical properties of the polymer blends are reported and the most promising bone graft material formulations are suggested. All blends were tested for thermal degradation analysis using TGA and thermal stability was confirmed. The water absorption experiments carried out in this study showed that the addition of nHA could improve the hydrophilicity of the blends.

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“…This shows that PBS cannot crystallize with improvement in the miscibility of the blends at higher PP loadings. This phenomenon shows that PP and PBS form a rigid amorphous fraction that may inhibit the growth of PBS crystals 41 …”

Section: Resultsmentioning

confidence: 94%

“…This phenomenon shows that PP and PBS form a rigid amorphous fraction that may inhibit the growth of PBS crystals. 41 The melting temperatures of PBS (115 C) and PP (165 C), which are recorded from the endothermic peaks of the heating cycle, remain unchanged regardless of the incorporation of CH or compatibilization.…”

Section: Tensile Property Testmentioning

confidence: 99%

Enhancing crystallization, miscibility, and processability of bio‐based polybutylene succinate/polypropylene blended composites via coffee husk reinforcement

Lule

Wondu

Kim

2023

Polymers for Advanced Techs

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Many studies have suggested that the interfacial compatibility in blends play an important role in determining the overall properties of the corresponding composites. This study investigated the effects of blend miscibility on the rheological, mechanical, and crystallization properties of polybutylene succinate (PBS)‐based composites reinforced with coffee husk (CH). The composites were fabricated using surface‐treated CH that was treated with a compatibilizer prior to composite fabrication. The results showed that the handling and processability of the composites improved after the surface treatment of CH. The surface treatment helped to achieve miscibility in polymer blends, and the dispersion of the surface‐treated CH in the PBS matrix was uniform. Moreover, the tensile strength and modulus of the compatibilized composites showed fourfold and twofold increases compared to neat PBS. The frequency‐dependent rheological test revealed increase in viscosity (>1000 times) and storage modulus with compatibilization and filler reinforcement. The degree of crystallinity of the PBS in the compatibilized composites reduced to about 10%. Furthermore, the compatibilized composites also demonstrated superior thermal stability than their corresponding non‐compatibilized composites.

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Temperature dependence of the rigid amorphous fraction of poly(butylene succinate)

Abstract: At room temperature and at the human body temperature, all the amorphous fraction is mobile in poly(butylene succinate).

Cited by 12 publications

References 66 publications

Thermal Stability and Decomposition Mechanism of Poly(alkylene succinate)s

Thermal Stability and Decomposition Mechanism of Poly(alkylene succinate)s

Bio-Based PLA/PBS/PBAT Ternary Blends with Added Nanohydroxyapatite: A Thermal, Physical, and Mechanical Study

Enhancing crystallization, miscibility, and processability of bio‐based polybutylene succinate/polypropylene blended composites via coffee husk reinforcement

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