Biodegradation Behavior of PLA/PBS Blends

Zhang, Shi Jie; Yi, Tao; Cheng, Li

doi:10.4028/www.scientific.net/amr.821-822.937

Cited by 12 publications

(12 citation statements)

References 18 publications

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“…6% in the PLA/PBS (80/20) blend, approx. 12% in the PLA/PBS (20/80) blend) [66]. Gel permeation chromatography was used to determine the molecular weight distribution of the polymer chains in the blend samples.…”

Section: Degradationmentioning

confidence: 99%

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Polylactide (PLA) and Its Blends with Poly(butylene succinate) (PBS): A Brief Review

et al. 2019

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Polylactide (PLA), poly(butylene succinate) (PBS) and blends thereof have been researched in the last two decades due to their commercial availability and the upcoming requirements for using bio-based chemical building blocks. Blends consisting of PLA and PBS offer specific material properties. However, their thermodynamically favored biphasic composition often restricts their applications. Many approaches have been taken to achieve better compatibility for tailored and improved material properties. This review focuses on the modification of PLA/PBS blends in the timeframe from 2007 to early 2019. Firstly, neat polymers of PLA and PBS are introduced in respect of their origin, their chemical structure, thermal and mechanical properties. Secondly, recent studies for improving blend properties are reviewed mainly under the focus of the toughness modification using methods including simple blending, plasticization, reactive compatibilization, and copolymerization. Thirdly, we follow up by reviewing the effect of PBS addition, stereocomplexation, nucleation, and processing parameters on the crystallization of PLA. Next, the biodegradation and disintegration of PLA/PBS blends are summarized regarding the European and International Standards, influencing factors, and degradation mechanisms. Furthermore, the recycling and application potential of the blends are outlined.

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Section: Degradationmentioning

confidence: 99%

“…Gel permeation chromatography was used to determine the molecular weight distribution of the polymer chains in the blend samples. The number average molecular weight decreases as a function of degradation time due to the chemical hydrolysis of PLA and PBS [66].…”

Section: Degradationmentioning

confidence: 99%

Polylactide (PLA) and Its Blends with Poly(butylene succinate) (PBS): A Brief Review

et al. 2019

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“…Therefore, biodegradable and biobased polymers have received considerable attention in the last 20 years due to their potential applications relating to environmental protection and ecology. Poly(lactide) (PLA) as a promising biopolymer has exhibited vast appeal due to its excellent performance in renewability, mechanical properties, biocompatibility and biodegradability compared with petroleum-based polymers (1)(2)(3)(4)(5)(6)(7)(8)(9)(10).…”

Section: Introductionmentioning

confidence: 99%

Crystallization modification of poly(lactide) by using nucleating agents and stereocomplexation

Jiang

Shen

et al. 2016

E-Polymers

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Poly(lactide), PLA, as one of the most promising biopolymers, has been receiving increasing attention in recent years because of its excellent performances in renewability, mechanical properties, biocompatibility and biodegradability. However, its application is limited by its brittleness and low heat distortion temperatures (HDT). The low HDT mainly results from a low crystallization rate and lack of crystallinity after fast processing, e.g. injection molding. Consequently, considerable attention was paid, in recent years, to achieve fast(er) crystallization of PLA. In here, we briefly review the research progress in the crystallization modification of PLA notably by means of adding nucleating agents and stereocomplexation.

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“…There are limited studies considering hydrolytic PBS biodegradation for medical applications. However, PBS is frequently used for nonmedical applications and there are different studies investigating PBS degradation in soil-burial biodegradation tests (Liu et al, 2009;Zhang et al, 2013). Liu et al (2009) performed a biodegradation study of PBS film and PBS/jute fibers; the degradation was carried out by burying the sample in compost soil.…”

Section: Discussionmentioning

confidence: 99%

In vitro evaluation of PLLA/PBS sponges as a promisingbiodegradable scaffold for neural tissue engineering

Altinişik¹,

Kök²,

Yücel³

et al. 2017

Turk J Biol

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In tissue engineering, the use of poly-L-lactic acid (PLLA)/polybutylene succinate (PBS) blend for the construction of scaffold is very limited. Moreover, polymeric sponges fabricated from PLLA/PBS have not been studied for neural tissue engineering. In the present study, the potential of the utility of PLLA/PBS polymeric sponges seeded with Schwann cells was investigated. PLLA and PBS were blended in order to increase the processability and tune the crystallinity, porosity, and degradation rate of the resulted polymeric sponges. These sponges were then seeded with Schwann cells. Porosity analysis showed that there were no significant differences between different compositions of PLLA/PBS blends; however, the porosity was slightly higher in PLLA/PBS (3%, w/v, 2:1) scaffold. Degradation profiles were also investigated for 120 days and almost 25% weight of PLLA/PBS (6%, 4%, 2%, w/v, 1:1) scaffolds and 18% weight of PLLA/PBS (3%, w/v, 2:1) scaffolds were lost at the end of 120 days. In vitro cell culture studies were also performed and the results proved that all PLLA/PBS blended scaffolds were biocompatible. The highest cell proliferation was observed for PLLA/PBS (3%, w/v, 2:1) scaffolds and this construct can be considered a promising biodegradable scaffold for neural tissue engineering.

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Biodegradation Behavior of PLA/PBS Blends

Cited by 12 publications

References 18 publications

Polylactide (PLA) and Its Blends with Poly(butylene succinate) (PBS): A Brief Review

Polylactide (PLA) and Its Blends with Poly(butylene succinate) (PBS): A Brief Review

Crystallization modification of poly(lactide) by using nucleating agents and stereocomplexation

In vitro evaluation of PLLA/PBS sponges as a promisingbiodegradable scaffold for neural tissue engineering

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