Melt Processing and Characterization of Bionanocomposites Made from Poly(butylene succinate) Bioplastic and Carbon Black

Snowdon, Michael R.; Mohanty, Amar K.; Misra, Manjusri

doi:10.1002/mame.201400088

Cited by 13 publications

(6 citation statements)

References 36 publications

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“…Copolymerization involving cyclic comonomers and blending with nanollers are the main approaches followed in this regard. 11,12 Carbohydrates stand out as very convenient raw materials for furnishing polycondensation monomers. They are relatively inexpensive, readily available, and provide broad functional diversity.…”

Section: Introductionmentioning

confidence: 99%

Bio-based PBS copolyesters derived from a bicyclicd-glucitol

et al. 2015

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to other bicyclic sugar-based diols reported in the literature, Glux-diol appeared to be more 22 efficient in both increasing the T g and enhancing the susceptibility to hydrolysis of PBS. 24 Introduction 25A growing interest for chemicals derived from renewable resources which are 26 able to replace oil-based monomers for the production of industrial polymers is 27 noticeable in these last years.1,2 Additionally, environmental pollution has recently 28 become a big problem of both social and technical repercussions due largely to the 29 high impact of plastic wastes.3 The most popular approach followed today to give 30 response to these concerns is to replace the commodity synthetic polymers by bio-31 based polymers. 4,5,6 In fact, polymers made from monomers derived from non-fossil 32 materials are sustainable and also total or partially susceptible to microbial 33 degradation.7 Aliphatic polyesters such as poly (L-lactic biodegradability when compared to PET and PBT. 19b,20b 67The purpose of this work is to explore the effects on properties of PBS caused 68 by the presence of carbohydrate-based diacetalized bicyclic units in the polymer chain, 69 more specifically of 2,4:3,5-di-O-methylene-D-glucitol, abbreviated as Glux-diol. We 70 have very recently reported on PBS copolyesters made from Manx-diol, the 71 stereoisomer of Glux-diol that derives from D-mannose. 21 Both isomers consist of two 72 fused 1,3-dioxane rings structure sharing a C6-segment backbone that bears two 73 hydroxyl functions at the end positions. At difference with Manx-diol, Glux-diol is 74 asymmetric so its two OH groups are spatially and hence chemically different (Scheme 75 1). Random PBS copolyesters containing Manx units could be obtained with M w above 76 30,000, they were semicrystalline for the whole range of compositions and displayed 77 enhanced T g and biodegradability. Since polymerization rate as well as polymer 78 properties are largely depending on monomer symmetry, it is of much conceptual 79 interest to compare Manx and Glux diols as comonomers for the production of PBS 80 copolyesters. Additionally, data obtained from this study can be related to those 81 reported for PBS copolyesters containing isosorbide in order to assess diacetalized 82 and dianhydride bicyclic diols as optional comonomers for their capacity to improve 83 PBS properties. The study is also of practical relevance since Glux-diol is a compound 84 coming from D-glucose, the most available monosaccharide in nature. C NMR spectra were recorded on a Bruker AMX-300 spectrometer at 102 25.0 ºC operating at 300.1 and 75.5 MHz, respectively. Polyesters were dissolved 103 either in deuterated chloroform or in a mixture of deuterated chloroform/ trifluoroacetic 104 acid (TFA) (1/1), and spectra were internally referenced to tetramethylsilane (TMS). 105About 10 and 50 mg of sample dissolved in 1 mL of solvent were used for 1 H and 13 C 106 NMR, respectively. Sixty-four scans were acquired for 1 H and 1,000-10,000 for 13 C with 107 32 and 64-K data points ...

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Section: Introductionmentioning

confidence: 99%

Bio-based PBS copolyesters derived from a bicyclicd-glucitol

et al. 2015

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“…There are a number of studies on PBS nanocomposites with fillers like TiO 2 , silica, clay, carbon black, CNT but very limited studies with graphene or graphene oxide. Among biodegradable polymers, PBS has received an increasing amount of attention because of its biodegradability, abundant renewable source, and excellent processability . However, their mechanical and thermal properties are often not sufficient to find as commercial and industrial applications.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of biodegradable poly(butylene succinate) nanocomposites with thermally reduced graphene nanosheets

et al. 2015

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Poly(butylene succinate) (PBS) is a biodegradable aliphatic polyester and is semicrystalline in nature. It has a wide range of engineering applications owing to its attractive combination of good processability and mechanical properties. PBS nanocomposites with graphene nanosheets were prepared by melt compounding. We report on their structure and their thermal, electrical, and mechanical properties. The thermal stability of the nanocomposite increased by 358C compared with that of neat PBS. The crystallization and melting behavior of the PBS matrix in the presence of dispersed graphene nanosheets were studied by differential scanning calorimetry and polarised optical microscope. We also observed an interesting phenomenon in the PBS/graphene nanocomposites from our FTIR investigation. b-form of PBS crystals are formed in the composite samples with 5 wt% graphene loading, which otherwise forms in pure PBS only under stress. We observed 12% modulus enhancement for 2 wt% PBS/graphene nanocomposites. The electrical conductivity increased to 10 5 -fold for 5 wt% PBS/graphene nanocomposites. POLYM. COMPOS., 38:E42-E48, 2017.

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“…30,31 DH m-PBS 5DH m /PBS fraction, where DH m is the melting enthalpy of composites calculated from DSC curves. The T g of PBS is about 2348C 32,33 and cannot be observed in the curves since the fully crystallization of PBS phase. Generally, the T g of PPC without extrusion is about 278C, 34 but as shown in Figure 4(A), the T g of extruded PPC was only 7.48C because the molecular weight of PPC greatly decreased after extruding.…”

Section: Resultsmentioning

confidence: 99%

Effects of l‐aspartic acid and poly(butylene succinate) on thermal stability and mechanical properties of poly(propylene carbonate)

Yun

Wang

et al. 2015

J of Applied Polymer Sci

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Poly(propylene carbonate) (PPC) was modified by l‐aspartic acid (Asp) and poly(butylene succinate) (PBS). To assess the effects of Asp and PBS on the thermal stability, mechanical properties of PPC, different PPC/Asp, PPC/PBS, and PPC/PBS/Asp blends were prepared by twin‐screw extruder. The results indicated that the thermal stability improved with the Asp content increasing from 0.5 to 5%. With trace presence of 2% Asp, the degradation temperature of PPC was greatly increased upon extruding and the Yield strength and Young's modulus increased 62 and 849 times, respectively, at 20°C. The flexibility of PPC was effectively improved by blending with PBS, the PBS has no significant effect on the thermal stability of PPC until PBS up to enough amount. Besides the Asp additive in PPC/PBS blends not only improved the thermal stability PPC, but improved the interfacial compatibility of the blend. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 42970.

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Melt Processing and Characterization of Bionanocomposites Made from Poly(butylene succinate) Bioplastic and Carbon Black

Cited by 13 publications

References 36 publications

Bio-based PBS copolyesters derived from a bicyclicd-glucitol

Bio-based PBS copolyesters derived from a bicyclicd-glucitol

Characteristics of biodegradable poly(butylene succinate) nanocomposites with thermally reduced graphene nanosheets

Effects of l‐aspartic acid and poly(butylene succinate) on thermal stability and mechanical properties of poly(propylene carbonate)

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