Determination of three-dimensional solubility parameters of chlorinated polypropylene by ultrasonic degradation

Tang, Siye; Liu, Dazhuang; Fan, Zifei

doi:10.1080/00319100600757417

Cited by 9 publications

(5 citation statements)

References 3 publications

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“…Tang measured the solubility of CPP in different solvents at 298.15 K in a previous work . The results are also listed in Table .…”

Section: Resultsmentioning

confidence: 99%

“…Tang et al calculated the values of χ 12 between CPP and its solvents at 298.15 K . The results of χ 12 as well as the values of Δ F m calculated by eq are also listed in Table .…”

Section: Resultsmentioning

confidence: 99%

“…Tang measured the solubility of CPP in different solvents at 298.15 K in a previous work. 9 The results are also listed in Table 2. It can be seen that the theta temperature decreases with the increase of solubility.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…where ΔF m is the Gibbs free energy of mixing; R is the gas constant, and T is the kelvin absolute temperature; n 1 , φ 1 and n 2 , φ 2 are the number of moles and the volume fraction of the solvent and the polymer, respectively; χ 12 is the Flory−Huggins interaction parameter. Tang et al calculated the values of χ 12 between CPP and its solvents at 298.15 K. 9 The results of χ 12 as well as the values of ΔF m calculated by eq 2 are also listed in Table 2. As seen in Table 2, the value of ΔF m decreases, and the solubility increases from ethyl acetate to 1,4-dioxane.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Theta Temperatures of Chlorinated Poly(propene) Solutions

Tang

Dong

2012

J. Chem. Eng. Data

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The aim of this work is to determine the theta temperatures of chlorinated poly(propene) solutions. The cloud point temperatures of chlorinated poly(propene) in ethyl acetate, butanone, and 1,4-dioxane solutions were determined at various concentrations. The theta temperatures of chlorinated poly(propene) solutions were determined by the linearity of the reciprocal cloud point temperature against the logarithm of the polymer volume fraction. The theta temperatures of chlorinated poly(propene) in ethyl acetate, butanone, and 1,4-dioxane solutions are 353.11 K, 347.95 K, and 335.91 K, respectively. The theta temperature increases with the decrease of solubility. The lower the solubility of chlorinated poly(propene) in solvent, the larger is the free energy of mixing, the weaker is the spontaneous dissolution, and the higher is the theta temperature.

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“…Tang measured the solubility of CPP in different solvents at 298.15 K in a previous work . The results are also listed in Table .…”

Section: Resultsmentioning

confidence: 99%

“…Tang et al calculated the values of χ 12 between CPP and its solvents at 298.15 K . The results of χ 12 as well as the values of Δ F m calculated by eq are also listed in Table .…”

Section: Resultsmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

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Theta Temperatures of Chlorinated Poly(propene) Solutions

Tang

Dong

2012

J. Chem. Eng. Data

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“…The introduction of functional groups by halogenation enhances the adhesion, solvent resistance, and gas permeability but also provide reactive sides which can be used in several well-known chemical reactions of the ole n backbone [15,16]. Among the halogenated POs, chlorinated polypropylene (PP-Cl) has several unique features such as heat and light stability, and resistance to abrasion, age, acid and alkali [17] and has also been extensively evaluated in many research studies for different purposes [18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Layer-by-Layer Assembled, Amphiphilic and Antibacterial Hybrid Electrospun Mat Made from Polypropylene and Chitosan Fibers

2021

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In this study, hybrid ber mat (HFPP-CS) consisting of both chlorinated polypropylene and chitosan bers (FPP-Cl and FCS) is obtained by assembling layer-by-layer (LBL) for the rst time using electrospinning process. Morphological, wettability, structural and thermal properties of HFPP-CS are investigated in detail by Scanning electron microscopy (SEM), water contact angle (WCA) measurement, fourier transform infrared (FT-IR) spectroscopy, thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) analyses, respectively, comparing with FPP-Cl and FCS. Furthermore, the antibacterial activity of all samples was evaluated against to gram positive Staphylococcus aureus (S. aureus) and gram negative Escherichia coli (E. coli) bacteria. SEM analysis proves to HFPP-CS has a circular and smooth morphology and also comprises of microscale FPP-Cl and nanoscale FCS layers. The incorporation of nano-FCS layer on micro-FPP-Cl layer leads to diminution in the hydrophobicity, but enhancement in the thermostability and glass transition temperature of the resulting ber mat. The antibacterial activity results show that HFPP-CS has inhibition effect against to S. aureus and E. coli. In general, it is anticipated that the prepared amphiphilic and antibacterial HFPP-CS can be employed as potential biomaterial for a variety of bioengineering applications.

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Influence of temperature on the phase inversion of chlorinated polypropylene

Qiao

Huang

et al. 2014

J of Applied Polymer Sci

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In this study, the maleic anhydride modified chlorinated polypropylene (MCPP) resin was emulsified by mixed ionic surfactants comprising sodium dodecyl sulfate (SDS) and sulfonated castor oil (SCO). The influence of temperature on the morphology of emulsion was studied through transitional and catastrophic inversion methods. The transitional inversion of emulsion from waterin-oil (W/O) to oil-in-water (O/W) was triggered by decreasing the temperature and the catastrophic inversion was achieved by increasing the weight fraction of water. The results of transitional and catastrophic inversion both indicated that the phase inversion of "ionic surfactant-MCPP-water" system is easier to trigger at low temperatures than at high temperatures, which could be interpreted by the thermodynamic and hydrodynamic theory. Incomplete phase inversion occurred at low temperatures when the volume of water phase was small and emulsions with small particle size and narrow particle size distribution could only be obtained at an intermediate temperature. These results are of great importance for the preparation of stable polymer emulsions in food, cosmetics and paints industry.

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Determination of three-dimensional solubility parameters of chlorinated polypropylene by ultrasonic degradation

Cited by 9 publications

References 3 publications

Theta Temperatures of Chlorinated Poly(propene) Solutions

Theta Temperatures of Chlorinated Poly(propene) Solutions

Layer-by-Layer Assembled, Amphiphilic and Antibacterial Hybrid Electrospun Mat Made from Polypropylene and Chitosan Fibers

Influence of temperature on the phase inversion of chlorinated polypropylene

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