Catalytic effect of poly(silicon-containing arylacetylene) with terminal acetylene on the curing reaction and properties of a bisphenol A type cyanate ester

2018 ◽  
Vol 67 (11) ◽  
pp. 1563-1571 ◽  
Author(s):  
Mingcheng Cai ◽  
Qiaolong Yuan ◽  
Farong Huang
Keyword(s):  
Bisphenol A ◽  
Catalytic Effect ◽  
Cyanate Ester ◽  
Terminal Acetylene ◽  
Poly Silicon ◽  
Curing Reaction

POSS-NH2/Cyanate Ester Resin Organic-Inorganic Hybrids: Curing Reaction and Dielectric Properties

2011 ◽  
Vol 266 ◽  
pp. 147-150 ◽  
Author(s):  
Zeng Ping Zhang ◽  
Shuan Fa Chen ◽  
Jian Zhong Pei
Keyword(s):  
Dielectric Properties ◽  
Catalytic Effect ◽  
Curing Kinetics ◽  
Cyanate Ester ◽  
Cyanate Ester Resin ◽  
Curing Reaction ◽  
Ft Ir ◽  
Higher Temperature ◽  
Lower Temperature ◽  
Different Content

A functional POSS monomer (POSS-NH2) was employed to modify cyanate ester (CE) resin. A series of POSS-NH2/CE hybrids containing different content of POSS have been prepared by melt casting and then curing. The curing kinetics and reaction mechanisms of the resin systems were studied by using FT-IR. Dielectric properties of the hybrids were also investigated. FT-IR results show that both temperature and POSS content may influence the curing reaction of CE. POSS-NH2 mainly displays the catalytic effect at higher temperature (220oC). The circumstance is more complex at lower temperature(190oC). CE1 containing 1 wt% of POSS has the best dielectric properties.

The Effect of POSS-NH2 on the Curing Reaction of Cyanate Ester Resin

2011 ◽  
Vol 217-218 ◽  
pp. 274-279 ◽  
Author(s):  
Zeng Ping Zhang ◽  
Jian Zhong Pei ◽  
Shuan Fa Chen ◽  
Hong Zhao Du ◽  
Yong Wen
Keyword(s):  
Reaction Mechanisms ◽  
Catalytic Effect ◽  
Curing Kinetics ◽  
Cyanate Ester ◽  
Cyanate Ester Resin ◽  
Curing Reaction ◽  
Ft Ir ◽  
Higher Temperature ◽  
Lower Temperature ◽  
Different Content

A functional POSS monomer (POSS-NH2) was employed to modify cyanate ester (CE) resin. A series of POSS-NH2/CE hybrids containing different content of POSS have been prepared by melt casting and then curing. The curing kinetics and reaction mechanisms of the resin systems were studied by using FT-IR. The experimental results show that both temperature and POSS content may influence the curing reaction of CE. POSS-NH2 mainly displays the catalytic effect at higher temperature (220oC). While the circumstance is more complex at lower temperature (190oC).

scholarly journals Reduced Graphene Oxide–P25 Nanocomposites as Efficient Photocatalysts for Degradation of Bisphenol A in Water

Catalysts ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 607 ◽  
Author(s):  
Fei Yu ◽  
Xueting Bai ◽  
Changfu Yang ◽  
Lijie Xu ◽  
Jie Ma
Keyword(s):  
Graphene Oxide ◽  
Bisphenol A ◽  
Reduced Graphene Oxide ◽  
Catalytic Effect ◽  
Light Sources ◽  
Solution Ph ◽  
Sunlight Irradiation ◽  
Practical Applications ◽  
Reduced Graphene

Reduced graphene oxide–titanium dioxide photocatalyst (rGO–TiO2) was successfully synthesized by the hydrothermal method. The rGO–TiO2 was used as photocatalyst for the degradation of bisphenol A (BPA), which is a typical endocrine disruptor of the environment. Characterization of photocatalysts and photocatalytic experiments under different conditions were performed for studying the structure and properties of photocatalysts. The characterization results showed that part of the anatase type TiO2 was converted into rutile type TiO2 after hydrothermal treatment and 1% rGO–P25 had the largest specific surface area (52.174 m2/g). Photocatalytic experiments indicated that 1% rGO–P25 had the best catalytic effect, and the most suitable concentration was 0.5 g/L. When the solution pH was 5.98, the catalyst was the most active. Under visible light, the three photocatalytic mechanisms were ranked as follows: O2•− > •OH > h+. 1% rGO–P25 also had strong photocatalytic activity in the photocatalytic degradation of BPA under sunlight irradiation. 1% rGO–P25 with 0.5 g/L may be a very promising photocatalyst with a variety of light sources, especially under sunlight for practical applications.

Kinetics of the curing reaction of a diglycidyl ether of bisphenol A with a modified polyamine

2005 ◽  
Vol 438 (1-2) ◽  
pp. 126-129 ◽  
Author(s):  
Alessia Catalani ◽  
Maria Grazia Bonicelli
Keyword(s):  
Bisphenol A ◽  
Diglycidyl Ether ◽  
Curing Reaction ◽  
Kinetics Of

Preparation and Dielectric Properties of POSS-NH2/Cyanate Ester Resin Organic-Inorganic Hybrids

2011 ◽  
Vol 216 ◽  
pp. 635-639 ◽  
Author(s):  
Zeng Ping Zhang ◽  
Jian Zhong Pei ◽  
Shuan Fa Chen ◽  
Hong Zhao Du ◽  
Yong Wen
Keyword(s):  
Dielectric Constant ◽  
Dielectric Properties ◽  
Dielectric Loss ◽  
Cyanate Ester ◽  
Cyanate Ester Resin ◽  
Curing Reaction ◽  
Ft Ir ◽  
Different Content

In order to improve the dielectric and overal properties of cyanate ester (CE) resin, a functional POSS monomer(octa(aminopropyl)silsesquioxane, POSS-NH2), was employed to modify CE. A series of POSS-NH2/CE hybrids (CE, CE1, CE2, CE3 and CE4) containing different content of POSS have been prepared by melt casting and then curing. The curing reaction of the resin systems were monitored by FT-IR. Dielectric properties of the hybrids were investigated in detail. FT-IR results showed the almost disappearance of the –OCN for all resin systems, suggesting the complete curing of CE using the experimental curing technique. Dielectric investigation indicates that CE1 which contains 1 wt% of POSS has the best dielectric properties with not only lowest dielectric constant but also lowest dielectric loss.

scholarly journals Tuning Exothermic Curing Reaction of Hydrogenated Bisphenol A Epoxy Resins for Stone Conservation

2012 ◽  
Vol 28 (2) ◽  
pp. 131-139 ◽  
Author(s):  
Yong-Seok Choi ◽  
You-Jin Park ◽  
Yong-Soo Kang ◽  
Jong-Ok Won ◽  
Jeong-Jin Kim ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Epoxy Resins ◽  
Stone Conservation ◽  
Curing Reaction

Bisphenol A (BADCy)/bisphenol P (BPDCy) cyanate ester/colemanite composites: synthesis and characterization

2015 ◽  
Vol 72 (7) ◽  
pp. 1611-1623 ◽  
Author(s):  
Emre Baştürk ◽  
Ferhat Şen ◽  
Memet Vezir Kahraman ◽  
Seyfullah Madakbaş
Keyword(s):  
Bisphenol A ◽  
Cyanate Ester ◽  
Synthesis And Characterization

Curing Kinetics and Rheology of Diglycidyiether of Bisphenol-A Modified by Poly(ethylene glycol) Flexible Chains

2010 ◽  
Vol 123-125 ◽  
pp. 411-414 ◽  
Author(s):  
Da Hu Yao ◽  
Kyung Bok Sun ◽  
Peng Li ◽  
Joong Hee Lee
Keyword(s):  
Ethylene Glycol ◽  
Bisphenol A ◽  
Epoxy Resin ◽  
Kinetic Parameters ◽  
Curing Kinetics ◽  
Poly Ethylene Glycol ◽  
Scanning Calorimetry ◽  
Exponential Factor ◽  
Curing Reaction ◽  
Poly Ethylene

The curing reaction of the system bisphenol-A glycidol ether epoxy resin modified by poly (ethylene glycol) (PEO) and flexible amine (D-230) as curing agent has been studied by means of differential scanning calorimetry (DSC) and thermal scanning rheometry. The curing kinetic parameters have been calculated from the non-thermal DSC curve. The kinetic analysis suggests that the two-parameter autocatalytic model is more appropriate to describe the kinetics of the curing reaction of the system. Increasing the PU content leads to an increase in the heat of curing and has a little effect on the kinetic parameters apparent activation energy (Ea), pre-exponential factor (A), and order of the reaction (m and n). The rheological properties were measured by isothermal curing evolution. Introduction of PEO flexible chains delayed the polymerization. It has been confirmed that the introduction of PEO chains in the structure of the epoxy resin increases the mobility of the molecular segment of the epoxy networks and results in the decrease in glass transition temperature.

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