Mechanical, thermomechanical, and morphology of PVC/PBMA blends and full IPNs

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Semi1 and semi2 interpenetrating polymer networks of poly(vinyl chloride) PVC and in situ formed poly(butyl acrylate) (PBA) have been synthesized and characterized using diallyl phthalate (DAP) and ethylene glycol dimethacrylate (EGDM) as the crosslinkers of PVC and PBA, respectively. These two types of IPNs have been compared with respect to their mechanical and thermal properties. The semi1 IPNs displayed a decrease in their mechanical parameters and the physical properties as well, while in contrast, the semi2 IPNs exhibited a marginal increase in the corresponding values when compared to the crosslinked PVC in the case of semi1 IPN and linear PVC in case of semi2 IPN. The representative samples of semi1 and semi2 IPNs revealed a two-stage-degradation typical of PVC while confirming the increased stability of the samples with higher onset temperature of degradation. The softening characteristics as detected by thermomechanical analysis are in conformity with their mechanicals.

Section: Physicomechanical Propertiesmentioning

confidence: 99%

Modification of the mechanical and thermal properties of PVC by semi IPN formation with poly(butyl acrylate)

Chakrabarti

Chakraborty

2008

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“…The miscibility behavior of PVC‐PBMA blend and interpenetrating network was reported by Chakraborty et al . In this work, investigation of solid polymer blend electrolytes based on PVC‐PBMA blend with lithium perchlorate as the complexing salt were prepared by solution casting technique and characterized using XRD, FTIR, TG/DTA, Scanning electron microscope, impedance spectroscopy and mechanical analysis to elucidate complexation, thermal stability, surface morphology, conductivity, and mechanical stability.…”

Section: Introductionmentioning

confidence: 61%

Effect of PBMA on PVC‐based polymer blend electrolytes

Arunkumar

Babu

Rani

et al. 2017

Poly(vinyl chloride) (PVC)—poly(butyl methacrylate) (PBMA) blended polymer electrolytes with lithium perchlorate (LiClO4) as the complexing salts are prepared by solution casting technique. The addition of PBMA into PVC matrix is found to induce considerable changes in physical and electrical properties of the polymer electrolytes. Addition of PBMA into PVC matrix is found to increase the conductivity by two orders of magnitude (1.108 × 10−5 S cm−1) when compared with that of the pristine PVC polymer electrolyte (10−7 S cm−1). Structural, thermal, mechanical, morphological, and polymer–salt interactions are ascertained from X‐ray diffraction (XRD), thermogravimetry/differential thermal analysis (TG/DTA), mechanical analysis, scanning electron microscope (SEM), and Fourier transform infrared spectroscopy (FTIR) respectively. A thermal stability upto 250 °C is asserted from the TG/DTA analysis. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44939.

“…The fast rate of decrease in %EB as is encountered at the later stages may be attributed to the gross‐phase separation. The toughness in conformity with %EB decreases progressively with increasing proportions of crosslinked PEA possibly because of its more and more inability to dissipitate or absorb fracture growth energy, because of links in the rubbery PEA phase 16…”

Section: Resultsmentioning

confidence: 99%

Modification of poly(vinyl chloride) by IPN formation with poly(ethyl acrylate)

Chakrabarti

Chakraborty

2009

Self Cite

Semi-1 and semi-2 interpenetrating polymer networks (IPNs) of poly(vinyl chloride) (PVC) and in situ formed poly(ethyl acrylate) (PEA) have been synthesized using diallyl phthalate and ethylene glycol dimethacrylate as the crosslinkers of PVC and PEA, respectively. These two types of IPNs have been compared with respect to their physical, mechanical, and thermal properties and an endeavor has been made to find a correlation of these properties with the morphology generated in these systems. The semi-1 IPNs displayed a decrease in their tensile strength and modulus while in contrast; the semi-2 IPNs exhibited a marginal increase with increasing crosslinked PEA incorporation. The semi-1 and semi-2 IPNs containing 10 and 30 wt % of PEA displayed a two-stage degradation typical of PVC in their thermogravimetric and DSC studies while confirming the increased stability of the samples with higher percentages of PEA. The softening characteristics as detected by the extent of penetration of the thermomechanical probe as has been detected by thermomechanical analysis are in conformity with their mechanicals. The biphasic cocontinuous systems as explicit from the morphological studies reveal fibrillar characteristics in both the systems.