Segmental mobility in sustainable copolymers based on poly(lactic acid) blocks built onto poly(butylene succinate) <i>in situ</i>

Klonos, Panagiotis A.; Bikiaris, Nikolaos D.; Zamboulis, Alexandra; Valera, Miguel Ángel; Mangas, Ana; Kyritsis, Apostolos; Terzopoulou, Zoi

doi:10.1039/d3sm00980g

Cited by 3 publications

(2 citation statements)

References 92 publications

(151 reference statements)

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“…This is compatible with the previously mentioned increase of the polymer concentration around the lignins and subsequently the decrease of polymer density away from them. Such a situation has been observed before in PLA-based systems 21,27,30,32 as well as in other polymers. 65…”

Section: Resultssupporting

confidence: 75%

“…20,21,25,28 Except for the PLA's performance within the application, there is a general desire to facilitate its physical degradation, for example in soil – compostability, which in the case of bulk PLA is rather slow. 8,29 Additionally, PLA exhibits high potential for combination with other polymers (copolymers, blends, interpenetrating polymer networks, and stars) 12,22,30–32 as well as with inorganic/organic fillers and nanoparticles. 24,33,34 The latter case, i.e.…”

Section: Introductionmentioning

confidence: 99%

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Structure–property relationships in renewable composites of poly(lactic acid) reinforced by low amounts of micro- and nano-kraft-lignin

Makri,

Klonos,

Marra

et al. 2024

Soft Matter

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Section: Resultssupporting

confidence: 75%

Section: Introductionmentioning

confidence: 99%

Structure–property relationships in renewable composites of poly(lactic acid) reinforced by low amounts of micro- and nano-kraft-lignin

Makri,

Klonos,

Marra

et al. 2024

Soft Matter

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Structural and thermodynamical investigation in triblock copolymers of polylactide and poly(ethylene glycol), PLA-b-PEG-b-PLA, envisaged for medical applications

Bikiaris,

Klonos,

Kyritsis

et al. 2024

Materials Today Communications

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Preparation and Structural-Thermodynamical Investigation of Renewable Copolyesters Based on Poly (Ethylene Succinate) and Polyisosorbide

Bouyahya,

Klonos,

Zamboulis

et al. 2024

Polymers

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A series of novel renewable copolymers based on poly(ethylene succinate) (PESu) and poly(isosorbide succinate) (PISSu), with the Isosorbide (Is)/PESu molar ratio varying from 5/95 to 75/25, were synthesized in-situ and studied in this work. A sum of characterization techniques was employed here for the structural and thermo-dynamical characterization. The sophisticated technique of dielectric spectroscopy, along with proper analysis, enabled the molecular dynamics mapping of both the local and segmental types, which is presented for such materials for the first time. With increasing the Is fraction, shorter copolymeric entities were gradually formed. Based on the overall findings, the systems were found to be homogeneous, e.g., exhibiting single glass transitions, with the two polymer segments being found to be excellently distributed. The latter is indirect, although strong, evidence for the successful copolymerization. The thermal degradation mechanism for the copolymers was exhaustingly explored employing analytical pyrolysis. The systems exhibited, in general, good thermal stability, according to the thermogravimetric analysis. Confirming one of the initial scopes for the present systems, isosorbide plays here the role of hardener (PISSu) over the soft polymer (PESu), and this is reflected in the monotonic increase of the glass transition temperature, Tg, from −16 to ~56 °C. The introduction of Is results in an increase in constraints (hardening of the matrix), while there seems to be an overall densification of the polymer (decrease of the free volume).

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Segmental mobility in sustainable copolymers based on poly(lactic acid) blocks built onto poly(butylene succinate) in situ

Abstract: Investigation of segmental dynamics in renewable triblock copolymers; effects of composition, chain/block lengths and crystallization.

Cited by 3 publications

References 92 publications

Structure–property relationships in renewable composites of poly(lactic acid) reinforced by low amounts of micro- and nano-kraft-lignin

Structure–property relationships in renewable composites of poly(lactic acid) reinforced by low amounts of micro- and nano-kraft-lignin

Structural and thermodynamical investigation in triblock copolymers of polylactide and poly(ethylene glycol), PLA-b-PEG-b-PLA, envisaged for medical applications

Preparation and Structural-Thermodynamical Investigation of Renewable Copolyesters Based on Poly (Ethylene Succinate) and Polyisosorbide

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