Preparation of surface-modified monodisperse polystyrene microspheres with cationic functional comonomer

Lü, Shanshan; Wenwei, Jiang; Li, Jingjing

doi:10.1007/s00396-018-4452-2

Cited by 4 publications

(2 citation statements)

References 22 publications

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“…FTIR spectrum with the characteristic bands of PS microspheres is shown in Figure (a), where the strong absorption band at around 3011 cm −1 is ascribed to the stretching vibration of the C─H in benzene rings while absorption bands at 2930 and 2859 cm −1 can be associated with the asymmetrical and symmetrical stretching vibrations of the ─CH 2 ─ and ─CH 3 , respectively . In addition, the characteristic absorption bands of the rigid vibration of benzene ring near 1630 and 1733 cm −1 are also observed.…”

Section: Resultsmentioning

confidence: 97%

Mechanical properties and thermal stability of porous polyimide/hollow mesoporous silica nanoparticles composite films prepared by using polystyrene microspheres as the pore‐forming template

Jia

Wang

et al. 2019

J of Applied Polymer Sci

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The porous polyimide/hollow mesoporous silica nanoparticles (PI/HMSNs) composite films were fabricated via blending polymerization by using polystyrene (PS) microspheres as the pore‐forming template. The morphologies, microstructures, thermal stability, thermal expansion coefficient (TEC), and mechanical performances of the porous PI/HMSNs films were characterized in detail. Results showed that the uniform dispersion of HMSNs benefits from the strong hydrogen‐bonding interaction between the hydroxyl groups of HMSNs and poly(amic acid) chains. Both weight loss and TEC of the porous PI/HMSNs films are lower than those of the pure porous PI film. When 0.8 wt % HMSNs and 7.0 wt % PS were added into the PI matrix, the Young's modulus and tensile strength of composite film increased by about 32.4% and 68.1% compared with those of the pure porous PI film. Conclusively, the introduction of HMSNs in the porous PI matrix is an important strategy to enrich the diversity of porous structure, improve the thermal and mechanical properties of the porous PI material simultaneously. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48792.

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Section: Resultsmentioning

confidence: 97%

Mechanical properties and thermal stability of porous polyimide/hollow mesoporous silica nanoparticles composite films prepared by using polystyrene microspheres as the pore‐forming template

Jia

Wang

et al. 2019

J of Applied Polymer Sci

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“…In dispersed polymerization, in addition, the partitioning coefficient (polymer phase/continuous phase) of styrene was a function of conversion rate. 50,51 Thus, the changing relationship between conversion rate and water content may be the reflection of the variety in the partitioning of the monomer. This further emphasized that it allowed more monomers to enter the particle phase, leading to a transfer of the main polymerization sites.…”

Section: Changes In the Main Polymerization Locusmentioning

confidence: 99%

The influence of water on size of the monodisperse polystyrene microspheres prepared by dispersion polymerization

Nie,

Man,

Shao

et al. 2023

J of Applied Polymer Sci

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Polystyrene microspheres with uniform sizes have a wide range of applications in biomedical engineering. However, detailed and systematic investigations on the influence of water content on alcohol/water systems are relatively scarce. In this study, the impact of trace water content on microsphere size was comprehensively examined, and a systematic exploration of the varying effects of different hydration levels on particle nucleation and growth mechanisms was conducted. When the water content increased from 0.1% to 0.4%, the microsphere diameter rapidly decreases from 3.6 to 2.71 μm. Correspondingly, the molecular weight increased from 29,797 to 69,186. However, within the water content range of 0.5%–14.5%, alterations in water content induced only slight variations in the microsphere diameter. The microsphere size, molecular weight, conversion rate, and reaction rate were compared in two stages. It was observed that the diminishing influence of water on the system was due to the changes in the main polymerization sites. Subsequently, the addition of water content up to 33.5% revealed an exponential decrease in the microsphere size with increasing water content in ethanol. This pattern was also observed in methanol and isopropanol, demonstrating its universality and predictability, making it applicable for precise prediction of microsphere size in different solvents.

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Monodisperse polystyrene microspheres containing quaternary ammonium salt groups by two-stage dispersion polymerization: effect of reaction parameters on particle size and size distribution

Lü

Wenwei

2020

Colloid Polym Sci

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Preparation of surface-modified monodisperse polystyrene microspheres with cationic functional comonomer

Cited by 4 publications

References 22 publications

Mechanical properties and thermal stability of porous polyimide/hollow mesoporous silica nanoparticles composite films prepared by using polystyrene microspheres as the pore‐forming template

Mechanical properties and thermal stability of porous polyimide/hollow mesoporous silica nanoparticles composite films prepared by using polystyrene microspheres as the pore‐forming template

The influence of water on size of the monodisperse polystyrene microspheres prepared by dispersion polymerization

Monodisperse polystyrene microspheres containing quaternary ammonium salt groups by two-stage dispersion polymerization: effect of reaction parameters on particle size and size distribution

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