Preparation of hetero-armed POSS-cored star-shaped PCL-PLA/PLA composites and effect of different diisocyanates as compatibilizer

Caner, Derya; Doğancı, Erdinç; Doğancı, Merve Dandan; Özkoç, Güralp

doi:10.1016/j.jmbbm.2021.104656

Cited by 10 publications

(6 citation statements)

References 76 publications

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“…28 The proton corresponded to the terminal methylene group shows a weak peak at 3.7 ppm. 28,29 This suggests that the dihydroxy functionalized PCL macroinitiator was successfully synthesized. The number-averaged molecular weight (M n,NMR ) calculated by 1 H NMR is 11.1 kg mol À1 .…”

Section: Characterizationmentioning

confidence: 98%

Crystallization, thermal and mechanical properties of stereocomplexed poly(lactide) with flexible PLLA/PCL multiblock copolymer

et al. 2022

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Section: Characterizationmentioning

confidence: 98%

Crystallization, thermal and mechanical properties of stereocomplexed poly(lactide) with flexible PLLA/PCL multiblock copolymer

et al. 2022

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“…[320][321][322][323] PLA can be used to produce plastic bottles for water; however, its barrier properties are low and therefore it is not recommended for storing some types of beverages. 324 Regarding its mechanical performance, PLA is brittle, [325][326][327] with less than 10% elongation at break 328,329 and has low impact resistance (commonly mentioned value: 2.5 kJ/m 2 ), [330][331][332] so its use is limited for some applications. In the work by Aliotta et al, 333 the elongation at break for PLA was 3.22%.…”

Section: Starch: Generalities and Gelatinizationmentioning

confidence: 99%

Polymer blends of poly(lactic acid) and starch for the production of films applied in food packaging: A brief review

Silva

Rios

Santana

2023

Polymers from Renewable Resources

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The limited degradation of synthetic polymers used in food packaging when discarded in the environment is a major concern for society. Therefore, industry and academia have sought to develop biodegradable and eco-friendly materials for single-use in packaging. An interesting alternative for the food industry is biodegradable polymeric films, which is why different biopolymers have been used in the production of sustainable packaging. It is worth mentioning that the use of biodegradable polymers is one of the most successful innovations in the industry to address issues related to the environment. Among the available raw materials, starch extracted from different renewable sources is very promising for this purpose, due to its abundance, low-cost compared to other polymers and ability to produce non-toxic films. However, when used alone, pure starch has many limitations, which can be overcome by developing a mixture with other polymers (polymer blends), preferably from renewable and biodegradable sources, such as poly(lactic acid) (PLA). In this context, the absence of literature reviews evidencing the results of the application of films in foods led us to write this article, given the importance of polymer blends produced with different types of starch (cassava, corn, pea, potato, rice and wheat) and the PLA matrix. According to the results, it is clear that polymer blends based on PLA/Starch for food packaging are very promising, already being part of the industries solutions, aiming to minimize the large volume of plastic waste of petrochemical origin discarded in nature. Obviously, as with any technology, more research is needed to further improve the performance of the films, and while much research has made great strides, there are still limitations that prevent the commercialization of these materials.

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“…Biodegradable materials can be used to replace petroleum-based plastics, such as poly(ethylene terephthalate) (PET), polypropylene (PP), and polyethylene (PE). [3][4][5][6] To overcome its major weakness, that is, brittleness, PLA is usually blended with a flexible polymer, for example, polycaprolactone (PCL), 7 poly(ethylene glycol) (PEG), 8 poly(butylene adipate-co-terephthalate) (PBAT) 9,10 or poly(butylene succinate) (PBS). 11 Among them, PBS an easily available biobased and biodegradable aliphatic thermoplastic elastomer is comparatively more flexible than PLA.…”

Section: Introductionmentioning

confidence: 99%

Miscibility and phase behavior of reactively compatibilized poly(lactic acid)/poly(butylene succinate) bio‐blends using various rheological analyses

Saeed Ullah,

Yildirim,

Caraseva

et al. 2023

J of Applied Polymer Sci

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This study focuses on the compatibilization of PLA/poly(butylene succinate) (PBS) blends using mono‐ and multi‐epoxide POSS (MoEpPOSS and MuEpPOSS) nanoparticles, from a rheological point of view for the first time in the literature. The addition of PBS to PLA decreased the complex viscosity, storage modulus, and loss modulus, indicating weak interactions between polymers. However, the incorporation of MoEpPOSS and MuEpPOSS increased the complex viscosity and storage modulus due to the formation of long polymeric chains or complex polymeric structures through interactions between the epoxide groups of POSS and the end groups of the polymers. The effect was more significant with MuEpPOSS because MuEpPOSS has multiple epoxide groups in its cage structure, leading to stronger interactions with the polymers. POSS incorporation resulted in semicircular and arc‐shaped curves in the Cole‐Cole plots, indicating better dispersion, phase homogeneity, and compatibility. The introduction of POSS also influenced the dynamic loss tangent (tan δ) versus frequency (ω) plot. When POSS was introduced, the tan δ peak decreased and shifted to a higher frequency, indicating improved compatibility, and enhanced interfacial adhesion. These findings indicated that the addition of epoxy‐POSS nanoparticles can effectively compatibilize PLA/PBS blends and enhance their rheological properties, potentially improving their overall performance for various applications.

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Preparation of hetero-armed POSS-cored star-shaped PCL-PLA/PLA composites and effect of different diisocyanates as compatibilizer

Cited by 10 publications

References 76 publications

Crystallization, thermal and mechanical properties of stereocomplexed poly(lactide) with flexible PLLA/PCL multiblock copolymer

Crystallization, thermal and mechanical properties of stereocomplexed poly(lactide) with flexible PLLA/PCL multiblock copolymer

Polymer blends of poly(lactic acid) and starch for the production of films applied in food packaging: A brief review

Miscibility and phase behavior of reactively compatibilized poly(lactic acid)/poly(butylene succinate) bio‐blends using various rheological analyses

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