Products and kinetics of the cationic ring-opening polymerization of 3-glycidoxypropylmethyldimethoxysilane by lithium perchlorate

Toyota, Kei

doi:10.1016/j.polymer.2021.123490

Cited by 11 publications

(7 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The relationship of the curing rate to DOC, curing temperature, and curing time can be obtained using DSC analysis of the epoxy resin system by isothermal or non-isothermal methods. The experimental results are analyzed and fitted with several classical kinetic models to obtain the kinetic parameters [ 35 , 36 , 37 ] and thus accurately predict the kinetic behavior of the reaction system.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Curing Temperature Effect on Mechanical Performance of Carbon Fiber Composites with Application to Filament Winding Pressure Vessel Design

et al. 2023

View full text Add to dashboard Cite

During the forming process of carbon fiber composite pressure vessels, the parameters of the curing and forming processes become one of the critical factors affecting the production cost and forming quality. The curing temperature of 4251 A4/B2 epoxy resin is measured in this research, and the effect of curing temperature on the mechanical properties of composite materials for winding is studied, which is finally verified in the test of pressure vessels. First, the actual curing temperature of the epoxy resin is tested and analyzed using differential scanning calorimetry (DSC). Second, under two different curing regimes, the tensile and flexural properties are tested by making pure epoxy resin matrix test pieces, Naval Ordnance Laboratory (NOL) rings, and carbon fiber composite unidirectional plates that affect the overall performance of composite pressure vessels. At the same time, the test results provide reliable process parameters for numerical simulation and manufacturing of pressure vessels. Finally, the filament-wound 35 MPa type III pressure vessel is cured and carried out using a hydraulic burst test. The results show the resin matrix has good fluidity and excellent interface bonding with carbon fiber when the curing temperature is 112 °C. Compared with the results in curing temperature of 100 °C, the tensile strength of the NOL ring reaches 2260.8 MPa, up by 22%. In the 90° direction, the tensile and flexural strengths of the unidirectional plates increase by 68.86% and 37.42%, respectively. In the 0° direction, the tensile and flexural strengths of the unidirectional plates increase by 5.82% and 1.16%, respectively. The pressure vessel bursting form is reasonable and meets the CGH2R standard. The bursting pressure of the vessel is up to 104.4 MPa, which verifies the rationality of the curing regime used in the curing process of the pressure vessel. Based on the results of this paper, the curing temperature affects the fluidity of the epoxy resin, which in turn affects the interfacial bonding properties of the composite, and the forming quality of the wound components and the pressure vessel, ultimately. When using 4251A4/B2 epoxy resin for wet winding pressure vessels, the choice of a 112 °C curing temperature will help improve the vessel’s overall performance. This work could provide reliable experience and insight into the curing process analysis of pressure vessel manufacturing.

show abstract

Section: Introductionmentioning

confidence: 99%

Experimental Study of Curing Temperature Effect on Mechanical Performance of Carbon Fiber Composites with Application to Filament Winding Pressure Vessel Design

et al. 2023

View full text Add to dashboard Cite

show abstract

“…RT-FTIR spectroscopy, according to numerous literature sources, has been and remains a useful technique for studying the kinetics of photopolymerization reactions according to radical, cationic, and hybrid mechanisms, in addition to various exposure conditions, types of light source used, coating thickness, monomer and oligomer reactivity or efficiency of newly developed photoinitiating systems. 79–85…”

Section: Quantitative Methods For Monitoring Photopolymerization Reac...mentioning

confidence: 99%

“…[71][72][73][74][75][76][77][78] RT-FTIR spectroscopy, according to numerous literature sources, has been and remains a useful technique for studying the kinetics of photopolymerization reactions according to radical, cationic, and hybrid mechanisms, in addition to various exposure conditions, types of light source used, coating thickness, monomer and oligomer reactivity or efficiency of newly developed photoinitiating systems. [79][80][81][82][83][84][85] For free-radical photopolymerization, RT-FTIR measurement consists of repeated scanning of the sample at short intervals and observing in real-time changes in the IR absorption spectrum, for example, changes in both the intensity and position characteristic of (meta)acrylic groups, i.e. : [86][87][88][89] • a band at 810-816 cm −1 characteristic of a twisting vibration of the -CHvCH 2 group,…”

Section: Reviewmentioning

confidence: 99%

Review of quantitative and qualitative methods for monitoring photopolymerization reactions

et al. 2023

View full text Add to dashboard Cite

show abstract

“…125 More recently, Toyota used Lithium perchlorate to polymerize 3-glycidoxypropylmethyldimethoxysilane (GMDM) for use as a polymer electrolyte. 126 Molecular weights up to ca. 5 kg mol À1 were demonstrated with some cyclic products also formed.…”

Section: Cationic Ring Opening Polymerization (Crop)mentioning

confidence: 99%

A guide to modern methods for poly(thio)ether synthesis using Earth-abundant metals

Ferrier,

Kumbhar,

Crum-Dacon

et al. 2023

Chem. Commun.

View full text Add to dashboard Cite

show abstract

Products and kinetics of the cationic ring-opening polymerization of 3-glycidoxypropylmethyldimethoxysilane by lithium perchlorate

Cited by 11 publications

References 41 publications

Experimental Study of Curing Temperature Effect on Mechanical Performance of Carbon Fiber Composites with Application to Filament Winding Pressure Vessel Design

Experimental Study of Curing Temperature Effect on Mechanical Performance of Carbon Fiber Composites with Application to Filament Winding Pressure Vessel Design

Review of quantitative and qualitative methods for monitoring photopolymerization reactions

A guide to modern methods for poly(thio)ether synthesis using Earth-abundant metals

Contact Info

Product

Resources

About