Study on <i>O</i>-Terphenyl/Polystyrene Blends: How Plasticizer Affects the Glass Transition of Polystyrene?

Liang, Xiaofan; Banglie, Chen; Fu, Jianjian

doi:10.1080/00222348.2011.609792

Cited by 4 publications

(2 citation statements)

References 24 publications

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“…Plasticizer is a class of additive that reduces the viscosity of the material by reducing the interaction between polymer chains. It successfully improves the basic properties of polymers such as reducing the rigidity, brittleness, glass transition temperature ( T g ), elastic modulus and melting temperature ( T m ) 17–19 . In line with the classical uses of a plasticizer in promoting plasticity and flexibility, several plasticizer applications have been reported in the literature.…”

Section: Introductionmentioning

confidence: 99%

Residual solvent minimization in polystyrene‐p‐xylene coatings using a nonvolatile additive

Rawat

Ahuja

2020

J of Applied Polymer Sci

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The use of plasticizer has been extensively studied for enhancing the flexibility, processability, solubility, and vapor permeability of polymeric materials. However, its use in enhancing drying of polymeric coatings has been scarcely studied. In the present work, the optimization of plasticizer loading for drying characteristics and residual solvent minimization in polystyrene‐p‐xylene polymeric coatings has been investigated. Coatings were prepared by solution casting technique at various triphenyl phosphate (TPP) loadings from 0 to 7.50 wt% for two cases of initial solution volumes of 75 and 125 μl. For these two cases, respectively, the minimum residual solvent values of 0.02% and 1.61% were obtained, both at 2.50 wt% TPP loading. However, the two cases exhibited residual solvent values of 2.32% and 4.45% at 0 wt% TPP. Further, the SEM results also showed that at 2.50 wt% TPP loading, the coatings developed a dense, smooth and defect‐free morphology attributed to their minimized residual solvent content. The coatings, however, had a porous and phase‐separated morphology originally at 0 wt% TPP. The variation of residual solvent, coating thickness and drying rate with plasticizer loading followed the same behavior for different initial solution volumes. All these parameters attained their peak values consistently at 2.50 wt% TPP. The study is first of its kind to indicate massive reduction in residual solvent attributed to the addition of a nonvolatile plasticizer. TPP also imparts flame retardance to inherently inflammable polystyrene thereby facilitating its implementation in electronic devices. The obtained coatings have possible applications in electronics, electro‐optics, and food packaging.

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Section: Introductionmentioning

confidence: 99%

Residual solvent minimization in polystyrene‐p‐xylene coatings using a nonvolatile additive

Rawat

Ahuja

2020

J of Applied Polymer Sci

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“…The figure shows that pure PS beads have an obvious glass‐transition behavior between 95 and 110°C, corresponding to T g = 99.00°C. HPCTP can be used as a small molecular plasticizer to reduce the interaction between macromolecular chains and provide necessary space for the chain activity, which leads to a decrease in T g for composite beads . With the increase in flame‐retardant content, T g gradually decreases, and a change in T g will lead to a change in the foaming temperature of the composite beads.…”

Section: Resultsmentioning

confidence: 99%

Preparation of halogen‐free flame‐retardant expandable polystyrene foam by suspension polymerization

Yuan

Wang

Bai

2019

J of Applied Polymer Sci

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In this research, using hexaphenoxycyclotriphosphazene (HPCTP) as the halogen-free flame retardant, we prepared flameretardant expandable polystyrene (EPS) beads by suspension polymerization. The effects of process parameters and the amount of flame retardant on polystyrene (PS)/HPCTP composite beads were investigated. The results show that the change in HPCTP content has little effect on the particle size distribution of composite beads. When the oil-water ratio is 1/4, TCP dosage is 3 wt %, stirring rate is 350 rpm, initiator dosage is 1.25 wt %, and HPCTP dosage is 15 wt %, the size of the composite beads is uniform, and the average particle size is 1.12 mm. HPCTP formed nanodispersed particles in the PS matrix with an average particle size of 44.86 nm. In addition, the thermogravimetric behavior and heat-release properties of composite beads were evaluated. The results showed that HPCTP mainly acted in the gaseous phase, which can effectively decrease the maximum mass-loss rate of the PS/HPTCP composite beads and significantly reduce the heat-release rate and heat-release capacity. The EPS foams were obtained by a prefoaming method. The average cell diameter was 62.15 μm, and the foaming ratio was 11 times.

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On the fabrication and characterization of heterogeneous composite neutron detectors with triple-pulse-shape-discrimination capability

Foster

Meddeb

Wonders

et al. 2020

Nuclear Instruments and Methods in Physics Research Section A:

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Study on O-Terphenyl/Polystyrene Blends: How Plasticizer Affects the Glass Transition of Polystyrene?

Cited by 4 publications

References 24 publications

Residual solvent minimization in polystyrene‐p‐xylene coatings using a nonvolatile additive

Residual solvent minimization in polystyrene‐p‐xylene coatings using a nonvolatile additive

Preparation of halogen‐free flame‐retardant expandable polystyrene foam by suspension polymerization

On the fabrication and characterization of heterogeneous composite neutron detectors with triple-pulse-shape-discrimination capability

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