Polysulfide Polymers: Synthesis, Blending, Nanocomposites, and Applications

Pirayesh, Amin; Salami‐Kalajahi, Mehdi; Roghani‐Mamaqani, Hossein; Najafi, Faezeh

doi:10.1080/15583724.2018.1492616

Cited by 34 publications

(17 citation statements)

References 103 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The most important properties of polysulfide-based polymers are their resistance to most solvents, oils, vapors, gases, light, and ozone, which allow them to be used in applications such as aircraft fuel tank sealants, printer rolls, and modifiers in the rubber industry [ 4 , 5 , 6 , 7 ]. Polysulfide polymers are available as crude rubber, suspended material, and liquid [ 8 , 9 ]. In the manufacturing of polysulfide resins, high-weight elastomeric polysulfides are first synthesized and then depolymerized to become liquid resins with a proportional molecular weight [ 8 , 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

“…Polysulfide polymers are available as crude rubber, suspended material, and liquid [ 8 , 9 ]. In the manufacturing of polysulfide resins, high-weight elastomeric polysulfides are first synthesized and then depolymerized to become liquid resins with a proportional molecular weight [ 8 , 10 , 11 ]. Unlike natural rubber, polysulfide polymers are not processable in rubber mills.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Kinetic Modeling and Degradation Study of Liquid Polysulfide Resin-Clay Nanocomposite

et al. 2021

View full text Add to dashboard Cite

Kinetic modeling and degradation study of liquid polysulfide (LPS)/clay nanocomposite is possible through Ozawa–Flynn–Wall (OFW) and Kissinger methods. Comparing the results of these models with experimental data leads to provide an accurate degradation kinetic evaluation of these materials. To this aim, the morphology and distribution of clay nanoparticles (CNPs) within the LPS matrix were investigated using Field Emission Scanning Electron Microscopy (FESEM) and X-ray diffraction (XRD). To evaluate the interaction between the LPS and the CNPs, the Fourier transform infrared (FTIR) identification was utilized. Furthermore, to investigate the kinetics of degradation, the thermal gravimetric analysis (TGA) and derivative thermogravimetry (DTG) of the samples were used in the nitrogen atmosphere with the help of Kissinger and Ozawa–Flynn–Wall (OFW) models. The characterization results confirmed the homogenous dispersion of the CNPs into the LPS matrix. In addition, the presence of CNPs increased the thermal stability and activation energy (Ea) of the samples at different conversion rates. Moreover, the OFW method was highly consistent with the experimental data and provided an appropriate fit for the degradation kinetics.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Kinetic Modeling and Degradation Study of Liquid Polysulfide Resin-Clay Nanocomposite

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Polysulfides (PS) are widely used as fuel tank sealant in aerospace industry thanks to their superior solvent and fuel resistance, predictable cure, stress release abilities and good adhesion to many substrates. 1,2 The liquid polysulfide polymers can be cured by metal peroxides and other metal oxy-salts, making use of the reducing properties of thiol groups to cross-link. 3 Commercial applications of polysulfide include construction, aerospace, automotive, marine, and insulating glass.…”

Section: Introductionmentioning

confidence: 99%

“…The desired physical and mechanical properties were accomplished by modifying with epoxides or isocyanate end groups, along with different filler systems. 1,[3][4][5][6] The need for electrical conductivity in aircraft fuel tank sealants arises from the safety concerns in dissipating the static charges built up from friction or in the case of lightning strikes. [7][8][9][10][11] Traditional sealants are based on polymeric adhesives that are electrical insulators.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Comparison of two high temperature treatment methods on preparing electrically conductive polysulfide/Ag composites for aerospace sealant applications

Song

et al. 2020

J of Applied Polymer Sci

View full text Add to dashboard Cite

High electrical conductivity of aircraft fuel tank sealant is vital to prevent charge accumulation during operation. In this work, we prepare highly conductive polysulfide (PS)/Ag composite (10 6 S m −1) via two thermal treatment methods-namely post cure annealing and high temperature (HT) curing, where the room temperature (RT) cured sample was previously found insulative. The HT cure samples resulted in a milder hardness increase compared to the RT cure-annealed ones. Through various chemical and thermal analyses, a strong coordination of the sulfide components on Ag surfaces is found blocking the electron tunneling pathways at RT, which turns out to be weakened at HT. Post cure annealing causes the decomposition of the coordinated segments and provides intimate contact of Ag particles to support conductivity. HT cure on the other hand prevents the Ag/S coordination in the first place, therefore producing highly conductive PS/Ag composite with softness well maintained which makes it the preferred method for conductive sealant applications.

show abstract

Photopolymerization Approach to Advanced Polymer Composites: Integration of Surface‐Modified Nanofillers for Enhanced Properties

Peng,

Zhang,

Xiao

2024

Advanced Materials

View full text Add to dashboard Cite

The incorporation of functionalized nanofillers into polymers via photopolymerization approach has gained significant attention in recent years due to the unique properties of the resulting composite materials. Surface modification of nanofillers plays a crucial role in their compatibility and polymerization behavior within the polymer matrix during photopolymerization. This review focuses on the recent developments in surface modification of various nanofillers, enabling their integration into polymer systems through photopolymerization. The article discusses the key aspects of surface modification of nanofillers, including the selection of suitable surface modifiers, such as photoinitiators and polymerizable groups, as well as the optimization of modification conditions to achieve desired surface properties. The influence of surface modification on the interfacial interactions between nanofillers and the polymer matrix is also explored, as it directly impacts the final properties of the nanocomposites. Furthermore, the review highlights the applications of nanocomposites prepared by photopolymerization, such as sensors, gas separation membranes, purification systems, optical devices, and biomedical materials. By providing a comprehensive overview of the surface modification strategies and their impact on the photopolymerization process and the resulting nanocomposite properties, this review aims to inspire new research directions and innovative ideas in the development of high‐performance polymer nanocomposites for diverse applications.This article is protected by copyright. All rights reserved

show abstract

Polysulfide Polymers: Synthesis, Blending, Nanocomposites, and Applications

Cited by 34 publications

References 103 publications

Kinetic Modeling and Degradation Study of Liquid Polysulfide Resin-Clay Nanocomposite

Kinetic Modeling and Degradation Study of Liquid Polysulfide Resin-Clay Nanocomposite

Comparison of two high temperature treatment methods on preparing electrically conductive polysulfide/Ag composites for aerospace sealant applications

Photopolymerization Approach to Advanced Polymer Composites: Integration of Surface‐Modified Nanofillers for Enhanced Properties

Contact Info

Product

Resources

About