Preparation of poly(l-lactide) blends and biodegradation by Lentzea waywayandensis

Nair, Nimisha R.; Nampoothiri, K. Madhavan; Pandey, Ashok

doi:10.1007/s10529-012-1005-5

Cited by 21 publications

(11 citation statements)

References 15 publications

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“…Furthermore, PVA and GA may blended together or with other polymers to improve their biodegradability and mechanical properties which is explain the high numbers of bacterial and fungal species on the blended membranes respectively (chromated GA/PVA=1:0.25), (chromated GA/PVA=1:0.5), chromated GA/PVA=1:0.75), and (chromated GA/PVA) comparing to the number of different microorganisms on the initial soil sample. In addition, the most number of microorganisms species was appeared with GA, and the low number was with PVA [9,10,11,12,55]. In this study, all bacterial and fungi species had a growth ability and are expected to be detoxification tools of potassium dichromate that blended with GA and PVA or both which leads to reduce the high absorption rate of chromium ion by animal, plant, and algae cells in the soil and enhancing the biodegradation of bioplastic membranes [25].…”

Section: Biodegradation Bacteria and Fungimentioning

confidence: 96%

“…It was showed that GA and PVA may blended together or with other natural polymers to improve their biodegradability, properties, and for producing nontoxic phytochemical scaffold which have therapeutic and diagnosis treatments applications [9,10,11,12,13]. Moreover, in the industrial applications field, solution of gum Arabic is mixed with either potassium or ammonium dichromate as a way of making photographic reproductions, and this is called gum printing [14].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Potassium Dichromate on Properties and Biodegradation of Gum Arabic Based Bioplastic Membranes

Hindi¹,

Albureikan²,

Alghamdi³

et al. 2017

NNR

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Gum Arabic (GA) collected from Acacia senegal trees was used with polyvinyl alcohol (PVA) to prepare of a series of biodegradable membranes doped and non-doped with potassium dichromate (K 2 Cr 2 O 7 ). Adding the K 2 Cr 2 O 7 to the GA/PVA blends slightly decreased their crystallinity index (CI) by about 2 %. Increasing the PVA concentration in the chromated GA/PVA blends was responsible for increasing the CI. Adding the K 2 Cr 2 O 7 to the pure GA solution modified its differential thermal behavior whereby the exothermic reactions occurred between 321°C and 433°C were disappeared. The K 2 Cr 2 O 7 increased the heat change drastically for all the bioplastic blends with the highest increase for the pure GA. Adding K 2 Cr 2 O 7 to the pure PVA increased the nanometric particle size (NPS) significantly. Increasing the PVA concentration in a blend had a greater effect than did the K 2 Cr 2 O 7 on the NPS. The buried bioplastic membranes in the control soil had different count and species of microbial communities. The numbers of bacteria and fungi in the initial soil sample were lower than those for chromated GA membranes and were greater than those for the chromated PVA. All bacterial and fungi species had growth ability and are expected to be detoxification tools of chromium ion-doped blends of GA and PVA leading to a green environment.

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Section: Biodegradation Bacteria and Fungimentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Effect of Potassium Dichromate on Properties and Biodegradation of Gum Arabic Based Bioplastic Membranes

Hindi¹,

Albureikan²,

Alghamdi³

et al. 2017

NNR

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“…Similarly, PLA blends have been developed with increased crystallinity, enhanced mechanical properties like toughness and elongation at break, and tailored hydrolytic or enzymatic degradation [16,17].…”

Section: Opportunities For Pla Blendsmentioning

confidence: 99%

Poly(lactic acid) blends in biomedical applications

Saini

Arora

Kumar

2016

Advanced Drug Delivery Reviews

434

258

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“…There have been numerous reports on blends of bio‐degradable polymers, particularly for medical or packaging applications . However, relatively limited research is reported on bio‐based polymer blends for high‐performance material applications . Polyamide blend literature is typically concerned with aliphatic polyamides blended with aromatic polyamides .…”

Section: Introductionmentioning

confidence: 99%

Biorenewable blends of polyamide‐4,10 and polyamide‐6,10

Moran

Barthelon

Pearsall

et al. 2016

J of Applied Polymer Sci

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Biobased polymers hold the promise of greatly improved sustainability metrics. In this study, semicrystalline polymer blends are formulated between two partially biorenewable polyamides. Polyamide 4,10 (PA410) is melt mixed with polyamide‐6,10 (PA610). Physical properties of the blends are investigated using differential scanning calorimetry (DSC), thermal gravimetric analysis (TGA), dynamic mechanical thermal analysis (DMTA), impact testing, and tensile testing. Morphological features are studied using small angle X‐ray scattering (SAXS) and wide angle X‐ray scattering (WAXS). The previously unreported equilibrium enthalpy of fusion for PA410 is found to be 269 J/g. Melting point depression from DSC is used to establish miscibility and calculate the polymer–polymer interaction parameter which is approximately independent of composition and equal to −0.25 kJ/mol. Crystallization induced phase separation is observed wherein crystallization drives phase separation. SAXS exhibits an increase in lamellar long spacing with increasing PA610 content. WAXS confirms the presence of only PA410 and PA610 crystals. The mechanical properties of the blends are shown to deviate from a simple law of mixtures. This miscible biorenewable polymer blend, exhibiting crystallization induced phase separation, and characterized by superior properties is of both scientific and potential commercial interest. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43626.

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Preparation of poly(l-lactide) blends and biodegradation by Lentzea waywayandensis

Cited by 21 publications

References 15 publications

Effect of Potassium Dichromate on Properties and Biodegradation of Gum Arabic Based Bioplastic Membranes

Effect of Potassium Dichromate on Properties and Biodegradation of Gum Arabic Based Bioplastic Membranes

Poly(lactic acid) blends in biomedical applications

Biorenewable blends of polyamide‐4,10 and polyamide‐6,10

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