Preparation and characterization of biodegradable polymer blends from poly(3‐hydroxybutyrate)/poly(vinyl acetate)‐modified corn starch

Lai, Sun‐Mou; Sun, Weiwei; Don, Trong‐Ming

doi:10.1002/pen.24071

Cited by 31 publications

(15 citation statements)

References 36 publications

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“…The results revealed that films had a single glass transition temperature (Tg) for all proportions of PHB/starch blends. However, the necessity of increasing the compatibility of PHB and PHA with starch is evidenced in other papers, and several methodologies including the chemical modification of polymers are proposed [26,27].…”

Section: Introductionmentioning

confidence: 99%

Skin-Compatible Biobased Beauty Masks Prepared by Extrusion

Coltelli

Panariello

Morganti

et al. 2020

JFB

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In the cosmetic sector, natural and sustainable products with a high compatibility with skin, thus conjugating wellness with a green-oriented consumerism, are required by the market. Poly(hydroxyalkanoate) (PHA)/starch blends represent a promising alternative to prepare flexible films as support for innovative beauty masks, wearable after wetting and releasing starch and other selected molecules. Nevertheless, preparing these films by extrusion is difficult due to the high viscosity of the polymer melt at the temperature suitable for processing starch. The preparation of blends including poly(butylene succinate-co-adipate) (PBSA) or poly(butylene adipate-co-terephthalate) (PBAT) was investigated as a strategy to better modulate melt viscosity in view of a possible industrial production of beauty mask films. The release properties of films in water, connected to their morphology, was also investigated by extraction trials, infrared spectroscopy and stereo and electron microscopy. Then, the biocompatibility with cells was assessed by considering both mesenchymal stromal cells and keratinocytes. All the results were discussed considering the morphology of the films. This study evidenced the possibility of modulating thanks to the selection of composition and the materials processing of the properties necessary for producing films with tailored properties and processability for beauty masks.

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Section: Introductionmentioning

confidence: 99%

Skin-Compatible Biobased Beauty Masks Prepared by Extrusion

Coltelli

Panariello

Morganti

et al. 2020

JFB

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“…The presence of PHB and PVAc components did not hinder the enzymatic degradation of the corn starch by α-amylase. 13 PHA blended with cellulose derivatives. Cellulose derivatives such as ethyl cellulose (EC), cellulose propionate and cellulose acetate butyrate (CAB) are attractive biomaterials that are extensively employed as blood coagulant, a pharmaceutical tablet coating and as carriers for poorly soluble drugs.…”

Section: Pha Modification Via Blendingmentioning

confidence: 99%

Polyhydroxyalkanoates: opening doors for a sustainable future

2016

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Polyhydroxyalkanoates (PHAs) comprise a group of natural biodegradable polyesters that are synthesized by microorganisms. However, several disadvantages limit their competition with traditional synthetic plastics or their application as ideal biomaterials. These disadvantages include their poor mechanical properties, high production cost, limited functionalities, incompatibility with conventional thermal processing techniques and susceptibility to thermal degradation. To circumvent these drawbacks, PHAs need to be modified to ensure improved performance in specific applications. In this review, well-established modification methods of PHAs are summarized and discussed. The improved properties of PHA that blends with natural raw materials or other biodegradable polymers, including starch, cellulose derivatives, lignin, poly(lactic acid), polycaprolactone and different PHA-type blends, are summarized. The functionalization of PHAs by chemical modification is described with respect to two important synthesis approaches: block copolymerization and graft copolymerization. The expanded utilization of the modified PHAs as engineering materials and the biomedical significance in different areas are also addressed.

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“…Moreover, an enhanced adhesion between starch-glycidyl methacrylate and PHBV matrix and fracture toughness in these blends were observed which indicate an improved compatibility of the blending components [116]. In a recent study, polyvinyl acetate-modified corn starch was also reported to improve the compatibility and flexibility of PHA:starch blends [117]. Besides starch, the derivatives of cellulose have been used widely as blending components with PHA largely because of their compatibility with PHA and their aptitude to augment the degradation of PHA.…”

Section: Carbohydrate Based Blendsmentioning

confidence: 90%

Bioplastic Polyhydroxyalkanoate (PHA): Recent Advances in Modification and Medical Applications

Mukheem¹,

Hossain²,

Shahabuddin³

et al. 2018

Preprint

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A wide variety of bacteria are found to be the tiny factories in the production of polyhydroxyalkanoate (PHA) biopolymer. PHA is the polyesters of 3-hydroxyalkanoic acids which occur in bacteria when the bacteria is subjected to nutrient limitation and simultaneously fed with an excess amount of carbon. This unfavorable condition forces the bacteria to store carbon in the form of resorbable cellular inclusions called PHA. Biosynthesized PHA has the ability to replace the currently feasible harmful petroleum based plastics to biobased plastics. PHA research is being focused mainly on two facts - bulk production of environment friendly low-cost PHA and functional group modification for multiple applications to mankind. Many companies are already producing PHA with highly tunable properties and are looking into economically feasible technologies for mass production of PHA. The core focus of PHA research includes a selection of potential PHA producers and low to zero cost carbon sources such as carbon containing wastages of household, farms and industries. This challenge of “trash to treasure” still remains to attain. Tunable properties of PHA have made them a more interesting biomaterial to blend with suitable biopolymers including bioactive compounds. Under precise physiological environment, PHA blends can deliver promising mechanical properties, acting as effective drug carriers and showing time bound degradation. Perhaps desirably tuned PHA may address many health issues including orthopedics - load bearing cartilage, artificial membranes for kidneys, heart and wound management. PHA has high immunotolerance, low toxicity and sustained biodegradability, which have attracted diverse scientist with many medical advancements such as bioabsorbable sutures and 3D structures. In the near future, it is expected to derive many smart auto controllable products from PHA such as microsphere, which could be utilised for a range of applications much more than just drug delivery. Furthermore, naturally produced hybrid PHA will be an interesting candidate as they possess essential properties for targeted applications without further artificial blending or incorporating any components.

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Preparation and characterization of biodegradable polymer blends from poly(3‐hydroxybutyrate)/poly(vinyl acetate)‐modified corn starch

Cited by 31 publications

References 36 publications

Skin-Compatible Biobased Beauty Masks Prepared by Extrusion

Skin-Compatible Biobased Beauty Masks Prepared by Extrusion

Polyhydroxyalkanoates: opening doors for a sustainable future

Bioplastic Polyhydroxyalkanoate (PHA): Recent Advances in Modification and Medical Applications

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