Study on the Crystallization Kinetic and Characterization of Poly(lactic acid) and Poly(vinyl alcohol) Blends

Yeh, Jen‐Taut; Yang, Ming‐Chien; Wu, Ching-Ju; Xiong, Wei; Wu, Chin‐San

doi:10.1080/03602550802497958

Cited by 36 publications

(21 citation statements)

References 43 publications

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“…Thus, the crystallization of PLA in presence of PVA is affected due to the formation of imperfect crystals in PLA by considering that the presence of the PVA can cause a dilution of the PLA nuclei, combined with the possible interference between the chains of PLA and PVA due to partial compatibility between them. Opposite results were obtained by Yeh et al, (2008) [11] who found that highest PLA crystallinity, appears in PLA/PVA blends containing 20 wt. % of PVA (MW: 75KDa, HD: 98%), attributed to the interactions between PLA and PVA that promote the crystallization.…”

Section: Dsc Analysismentioning

confidence: 63%

“…Assender and Windle, 1998 [31] reported that PVA chains are lying along the b-axis of the unit cell. Two characteristic peaks of pseudo orthorhombic α-phase crystallites structure (Space group P3 2 ) were observed for pure PLA, around 16.5 and 18.8° (2θ), corresponding to the reflection of 110/200 and 203 planes with two chains in a helical conformation [11,32,33] .…”

Section: Xrd Analysismentioning

confidence: 99%

“…Variations in values of Tcc, Tm, and Xc in PLA/PVA blends are usually attributed to interactions between the components. In general, the decrease in PLA crystallinity is related to the partially compatible nature of the blends [11,22] .…”

Section: Dsc Analysismentioning

confidence: 99%

“…Furthermore, the hydroxyl groups in PVA readily form hydrogen bonds with the ester groups of PLA, which favors the compatibility of their blends. Yeh et al, (2008) [11] found that a compatible blend PLA: PVA (80: 20 wt. %: wt.…”

Section: Introductionmentioning

confidence: 99%

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The effect of molecular weight and hydrolysis degree of poly(vinyl alcohol)(PVA) on the thermal and mechanical properties of poly(lactic acid)/PVA blends

et al. 2018

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The effect of molecular weights and hydrolysis degrees (HD) of polyvinyl alcohol (PVA) on thermal and mechanical properties and crystallinity of polylactic acid (PLA)/PVA blends was investigated. Blends were prepared by the melt blending method using PLA/PVA ratios: 80/20, 90/10 and 97/3 wt. %. A single glass transition temperatures was observed for all PLA/PVA blends, suggesting the formation of binary compatible blends at concentration range studied. Thermogravimetric analysis results showed a better thermal stability for PLA/PVA blends containing PVA of higher Mw and HD. According to mechanical properties, low quantities of PVA (3 wt. %) do not affect the tensile strength of blends (irrespective of Mw and HD). However, as the PVA content increases, tensile strength tends to lower values, especially for blends with 20 wt.% of PVA, with 98% of HD.

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Section: Dsc Analysismentioning

confidence: 63%

Section: Xrd Analysismentioning

confidence: 99%

Section: Dsc Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The effect of molecular weight and hydrolysis degree of poly(vinyl alcohol)(PVA) on the thermal and mechanical properties of poly(lactic acid)/PVA blends

et al. 2018

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“…Polyvinyl alcohol (PVOH) is a water soluble and biodegradable synthetic polymer. Melt blending of PLA with PVOH can give rise to a partially miscible biodegradable blend system with improved flexibility than virgin PLA [141] . However, solution blending of PVOH with PLA leads to an immiscible blend when the PLA content in the blend system is more than 60 wt% [142,143] .…”

Section: Pla With Polyvinyl Alcohol (Pvoh)mentioning

confidence: 99%

Polyblends and composites of poly (lactic acid) (PLA): a review on the state of the art

Rajan¹,

Thomas²,

Gopanna³

et al. 2018

J. Polym. Sci. Eng.

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Polymers obtained from renewable sources are gaining popularity over their petroleum based counter parts in recent years due to their capability to address the environmental pollution related concerns emanating from the widespread usage of synthetic polymers. Even though the polymers from renewable sources are attractive in an environmental point of view, some of the property limitations and the high cost of these materials pose limitations for their extensive commercial applications. These aspects opened the door for a large chunk of research activities in development of polyblends and composites containing polymers from renewable sources as one of the components. Poly (lactic acid) (PLA) is one of the most discussed and commercialized polymer originated from renewable resources. Even though it has many useful properties, certain disadvantages like high brittleness, low impact resistance etc. limit the wide spread commercialization of PLA. In this review article, the recent research activities which are aimed to fill this gap by various modifications of PLA are discussed with special emphasis on the latest research advancements in the field of biodegradable and non biodegradable systems containing PLA.

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Poly(Lactic Acid) Blends

et al. 2010

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Study on the Crystallization Kinetic and Characterization of Poly(lactic acid) and Poly(vinyl alcohol) Blends

Cited by 36 publications

References 43 publications

The effect of molecular weight and hydrolysis degree of poly(vinyl alcohol)(PVA) on the thermal and mechanical properties of poly(lactic acid)/PVA blends

The effect of molecular weight and hydrolysis degree of poly(vinyl alcohol)(PVA) on the thermal and mechanical properties of poly(lactic acid)/PVA blends

Polyblends and composites of poly (lactic acid) (PLA): a review on the state of the art

Poly(Lactic Acid) Blends

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