An overview on synthesis, properties and applications of polycaprolactone copolymers, blends &amp; composites

Sachan, Radha; Warkar, Sudhir G.; Purwar, Roli

doi:10.1080/25740881.2022.2113890

Cited by 11 publications

(15 citation statements)

References 206 publications

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“…Poly (ε‐caprolactone) (PCL) is a semi‐crystalline synthetic aliphatic polyester that can be biodegradable by a number of microorganisms 1 . The biocompatibility of PCL makes it mostly applicable in tissue engineering, 2,3 drug delivery, 4 bioimaging, 5 medical packaging & coatings 6 . On the basis of medical application, degradation studies on PCL and its copolymers are majorly focused on simulated body fluids.…”

Section: Introductionmentioning

confidence: 99%

“…These simulated environments are enzymes, 7 buffer solutions, and water 8,9 . The degradation of polycaprolactone is a bulk process that occurs in two steps: (1) erosion of the surface and (2) cleavage of CO bond or the degradation of macromolecules 6 . The copolymers of PCL with lactic acids, 10 glycolide 11 and δ ‐valerolactone 12 increase the in‐vitro degradation rate of copolymer due to the change in chemical structure, crystallinity, and hydrophilicity.…”

Section: Introductionmentioning

confidence: 99%

“…The hydrolysis reaction is much faster as the soil dries while PDMS undergoes extensive degradation when exposed to dry soils. It is discovered that the soil's clay components encourage this rearrangement process 5–8 …”

Section: Introductionmentioning

confidence: 99%

“…1 The biocompatibility of PCL makes it mostly applicable in tissue engineering, 2,3 drug delivery, 4 bioimaging, 5 medical packaging & coatings. 6 On the basis of medical application, degradation studies on PCL and its copolymers are majorly focused on simulated body fluids. These simulated environments are enzymes, 7 buffer solutions, and water.…”

Section: Introductionmentioning

confidence: 99%

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Soil burial degradation studies of photo‐crosslinked PCL‐PDMS‐PCL triblock copolymer films

Sachan,

Purwar

2023

Polymer Engineering & Sci

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This article focuses on the soil burial degradation behavior of photo‐crosslinked Polycaprolactone (PCL) homopolymer and Polycaprolactone‐Polydimethylsiloxane‐Polycaprolactone (PCL‐PDMS‐PCL) triblock copolymer films. PCL homopolymer and PCL‐PDMS‐PCL triblock copolymer films with varying the chain length of PCL were synthesized. The microlevel, macrolevel, and structural changes in the samples of homopolymer and triblock copolymer were analyzed before and after soil burial test. Microlevel changes were determined by the evaluation of morphological properties with the digital camera, optical microscope (OM), and scanning electron microscope (SEM) images. These changes revealed that the degradation of copolymer films enhanced with increasing PCL chain length. The Macrolevel structural changes were examined by Fourier transform infrared spectroscopy (FTIR) and Differential Scanning Calorimetry (DSC) crystallinity. The soil burial degradation mechanism was proposed for PCL‐PDMS‐PCL triblock copolymer films based on the obtained results.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Soil burial degradation studies of photo‐crosslinked PCL‐PDMS‐PCL triblock copolymer films

Sachan,

Purwar

2023

Polymer Engineering & Sci

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“…To overcome such limitations, blending is one of the most effective approaches to combine the best attributes of both polymers. Remarkable research efforts have focused on PLA and PCL as the most important biodegradable materials [ 13 , 14 , 15 , 16 , 17 ] to be processed by traditional thermoplastic processing methods with a sustainable option for their disposal [ 13 ]. However, they are thermodynamically immiscible, resulting in a multiphase structure with poor dispersion and interfacial adhesion phase separation [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Almond Skin Waste and Glycidyl Methacrylate on Mechanical and Color Properties of Poly(ε-caprolactone)/Poly(lactic acid) Blends

et al. 2023

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Blending Poly(lactic acid) (PLA) and Poly(ε-caprolactone) (PCL) is a promising strategy to enhance the properties of biodegradable materials. However, these compounds are thermodynamically immiscible and, consequently, compatibilization is required during polymer blending. Reinforced biocomposites can be obtained by adding agricultural wastes generated by industries which are forced to consider waste treatment methods to prevent environmental concerns. Novel PCL/PLA blends were proposed based on the addition of 10 wt.% almond shell (AS) waste combined with 3 wt.% glycidyl methacrylate (GMA) as a compatibilizer. Different PCL-, PLA-, and PCL/PLA-based blends at different percentages (75:25, 50:50, 25:75, 15:85) added with GMA and AS were obtained. The color results highlighted the lower transparency and brownish tone of the studied formulations after the addition of AS. The addition of PCL provided a positive effect on PLA’s ductility due to its intrinsically higher flexibility. The combination of GMA and AS improved the mechanical properties of PCL, PLA, and 50:50 controls by reducing yield strength, yield strength at break, and elongation at break values. The 75:25_GMA_AS formulation showed a homogeneous visual appearance, low transparency, and desirable mechanical properties for rigid food packaging applications, reducing the final material cost through the revalorization of AS.

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Effect of PCL chain length on rheological and mechanical properties of PCL‐PDMS‐PCL triblock copolymer films

Sachan,

Purwar

2024

J of Applied Polymer Sci

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The polycaprolactone‐polydimethylsiloxane‐polycaprolactone (PCL‐PDMS‐PCL) triblock copolymer films of variable PCL chain are analyzed for rheological characteristics in this paper. The dynamics of viscoelastic behavior of photocrosslinked films above their crystal melting temperature (Tcm) is measured using oscillatory shear rheology experiments. The frequency sweep tests are analyzed at 0.1% strain as obtained from linear viscoelastic region. Shear thinning is observed in the study of complex viscosity. It has been noted that viscosity rises with increase in crosslink density and decrease in with PCL chain length. Time‐dependent effect on the copolymer films has been analyzed by creep recovery behavior. The Burgers model is fitted in creep compliance data to analyze its viscoelastic and viscous region. An examination of structure recovery revealed that recovery increased as PCL chain length decreased. Tensile strength and percentage elongation are studied at ambient conditions with a universal testing machine, while storage modulus and tan δ are analyzed by a dynamic mechanical analyzer at varying temperatures.

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An overview on synthesis, properties and applications of polycaprolactone copolymers, blends & composites

Cited by 11 publications

References 206 publications

Soil burial degradation studies of photo‐crosslinked PCL‐PDMS‐PCL triblock copolymer films

Soil burial degradation studies of photo‐crosslinked PCL‐PDMS‐PCL triblock copolymer films

Effect of Almond Skin Waste and Glycidyl Methacrylate on Mechanical and Color Properties of Poly(ε-caprolactone)/Poly(lactic acid) Blends

Effect of PCL chain length on rheological and mechanical properties of PCL‐PDMS‐PCL triblock copolymer films

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