Article
Polymer Science
Maryam Jouyandeh, Henri Vahabi, Mohammad Reza Saeb, Christian Serre
Summary: Amine-functionalized MIL-101(Cr)-NH2 metal-organic frameworks (MOF-N)/epoxy nanocomposites showed enhanced cure label and high thermal stability. The addition of MOF-N acted as a catalyst in the epoxy/amine curing reaction, lowering the activation energy. Incorporation of a low amount of MOF-N induced early resistance against decomposition, attributed to the formation of porous metallic oxides acting as a heat barrier.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Dengxun Ren, Bo Li, Sijing Chen, Mingzhen Xu, Xiaobo Liu
Summary: Phthalonitrile containing benzoxazine (BA-ph) and Bisphenol A based cyanate ester (CE) were used as matrix resin, with various amounts of nano-SiO2 incorporated to fabricate glass fiber-reinforced composite laminates. The dispersed SiO2 particles acted as physical crosslinking points and diluents in the matrix, improving mechanical properties of the composite. The addition of SiO2 also led to increased dielectric properties with frequency dependence in the composites.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Jiajia Ye, Qiusha Li, Shuai Zhang, Xiaobo Liu
Summary: In this study, a modified resin with higher reactivity and lower curing temperature was successfully synthesized by introducing melamine moiety into phthalonitrile. The modified resin formed various chemical structures during the reaction process, showing higher thermal stability.
Article
Materials Science, Composites
Joseph V. Severino, Hyun I. Kim, Geena L. Ferrelli, Rafael J. Zaldivar
Summary: Cyanate ester composites are degraded by anodized mandrels, leading to reductions in glass transition temperatures, thermal stability, and mass loss. The depth of degradation can reach up to 500 μm. Anodized aluminum absorbs significantly more water compared to composite mandrel materials. The results highlight the hydrolysis risk of anodization in manufacturing cyanate ester composites and emphasize the need for cautious use and environmental conditioning in space structure development.
POLYMER COMPOSITES
(2023)
Article
Polymer Science
Zhiyi Jia, Xinyang Zhang, Xinyang Wang, Tao Zhao, Xinggang Chen, Minjie Wu, Jianxin Rong, Dianqiu Jia, Xiaoyan Yu, Qingxin Zhang
Summary: This study successfully synthesized a novel phthalonitrile monomer (CPND) with a symmetrical rigid naphthalene ring structure, long flexible chains, and high-density cyano groups. The impact of curing agent structure and ramp-up procedure on polymer properties is being investigated through the curing of the monomer using two different agents and procedures. The monomer's structure was verified using NMR, FTIR, and WAXD, and the polymer exhibited remarkable thermal stability and favorable thermo-mechanical properties.
JOURNAL OF POLYMER SCIENCE
(2023)
Article
Polymer Science
Josh D. Wolfgang, Jennifer L. Dysart, Matthew Laskoski
Summary: Phthalonitrile (PN) polymers are high-temperature thermosetting resins with long cure-times hindering their use in certain applications. The addition of dicyanamide-based ionic liquid and aromatic amine allowed for lower cure temperatures and shorter cure times. The results showed significant improvements in the curing process and properties of the PN resins.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Polymer Science
Xiaoqing Liu, Shuai Zhang, Jiajia Ye, Miao Wu, Jingyu Hou, Xiaobo Liu
Summary: By modifying bismaleimide-triazine (BT) resin with 4-(4-amino-phenoxy)phthalonitrile (4-APN), the reactivity of BT resin can be increased and the curing temperature can be decreased, resulting in poly(BT/APN)s with high heat-resistance, high breakdown strength, excellent insulation properties, improved moisture resistance and toughness. Therefore, poly(BT/APN)s can be considered as an ideal material for microelectronics.
EUROPEAN POLYMER JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Yu Shan Tay, Eric Jian Rong Phua, Zhong Chen, Chee Lip Gan
Summary: Alumina particles are investigated as a potential catalyst for phthalonitrile polymerization and property enhancer. Chemical interactions between alumina fillers and phthalonitrile are observed, leading to improved performance and thermomechanical properties of the composite.
Article
Chemistry, Multidisciplinary
Yu Shan Tay, Eric Jian Rong Phua, Zhong Chen, Chee Lip Gan
Summary: This study investigates the potential use of alumina particles as a catalyst and property enhancer in the polymerization of phthalonitrile. The results show that alumina fillers not only have a catalytic effect on the polymerization process but also improve the thermomechanical properties of the composite materials. The findings provide valuable insights into the application of alumina-filled phthalonitrile resins.
Article
Chemistry, Applied
S. S. Nechausov, A. A. Aleksanova, O. S. Morozov, B. A. Bulgakov, A. Babkin, A. Kepman
Summary: Novel dual-functional phthalonitrile monomers containing a maleimide group were synthesized and characterized, showcasing a combination of bismaleimide resins' mechanical properties and phthalonitriles' thermo-oxidative stability. The copolymerization of maleimide groups via ene reaction and ring-opening amidation allowed the formation of a polymeric system with high impact strength, flexural strength, and excellent thermal properties.
REACTIVE & FUNCTIONAL POLYMERS
(2021)
Article
Materials Science, Multidisciplinary
Tian Liu, Mingzhen Xu, Zhongxiang Bai, Xiaoqian Xu, Dengxun Ren, Wenjin Chen, Xiaobo Liu
Summary: A strategy for toughening phthalonitrile-based resin containing benzoxazine (BA-Ph) with poly (aryl ether nitrile) (PP-PEN) was proposed. The influence mechanism of PP-PEN with different molecular weight on the polymerization process and cross-linking structure of BA-Ph was explored. Glass fiber reinforced composite laminates (BA-Ph/PP-PEN/GF) were fabricated and the effect of PP-PEN molecular weight on the mechanical and thermal properties was investigated.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Thermodynamics
J. K. Bansiwal, Ajit Shankar Singh, T. U. Patro, D. S. Bag
Summary: Silicon-containing bis-phthalonitrile (SiPN) resin was synthesized via multi-step synthetic route and characterized using spectroscopic and thermal methods. The curing behavior of the resin was studied using DSC, which showed specific temperature ranges for melting, curing onset, curing exotherm peak, and curing end-set. The thermal stability of the cured resin was assessed using TGA, and the resin exhibited a char yield of 68% at 1073 K.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Polymer Science
Ilya Tarasov, Anastasiya Oboishchikova, Roman S. Borisov, Vyacheslav V. Kireev, Igor S. Sirotin
Summary: In this study, a simplified one-step method for the synthesis of phosphazene-based epoxy resins was developed, and bisphenol F was used to decrease viscosity. The cured resins showed high mechanical properties and glass transition temperature, making them suitable for use as resin components in composite materials, adhesives, and paints.
Article
Thermodynamics
A. S. Singh, J. K. Banshiwal, Preeti Mishra, S. K. Shukla, D. S. Bag, D. N. Tripathi
Summary: This study investigates the impregnation of thermoplastic polyether imide (PEI) into high-temperature biphenyl-based phthalonitrile (PN) thermosetting resin to form a semi-interpenetrating network (s-IPN). The optimal composition is sought to maintain the glass transition temperature (Tg) and thermal stability of the base resin system. Various ratios of PEI and PN are cured and analyzed for their thermal and physical properties. The results show that a PN/PEI ratio of 95:05 exhibits the desired properties with the least compromise in Tg temperature.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Polymer Science
Jinshui Lu, Jinyuan Zhang, Heng Liu, Weipeng Chen, Jiangrong Luo, Ziqing Wang, Tingting Cui, Yonggang Min, Yidong Liu
Summary: A new diamine was designed and synthesized through Suzuki reaction by connecting flexible structures between benzene rings. Polyimide films were synthesized by copolymerization with different proportions of the new diamine and pyromellitic dianhydride (PMDA). The films exhibited excellent glass transition temperatures and good heat resistance.
HIGH PERFORMANCE POLYMERS
(2023)
Article
Chemistry, Physical
Penglun Zheng, Mingzhen Xu, Xiaobo Liu, Kun Jia
Article
Engineering, Electrical & Electronic
Renbo Wei, Jialing Wang, Zicheng Wang, Lifen Tong, Xiaobo Liu
JOURNAL OF ELECTRONIC MATERIALS
(2017)
Article
Engineering, Electrical & Electronic
Zicheng Wang, Renbo Wei, Xiaobo Liu
JOURNAL OF ELECTRONIC MATERIALS
(2017)
Article
Materials Science, Multidisciplinary
Lin Pan, Kun Jia, Hongguo Shou, Xuefei Zhou, Pan Wang, Xiaobo Liu
JOURNAL OF MATERIALS SCIENCE
(2017)
Article
Engineering, Electrical & Electronic
Jialing Wang, Renbo Wei, Lifen Tong, Xiaobo Liu
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2017)
Article
Engineering, Electrical & Electronic
Kun Jia, Hongguo Shou, Pan Wang, Wenjin Chen, Xiaobo Liu
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2017)
Article
Engineering, Electrical & Electronic
Qing Qi, Yumin Huang, Mingzhen Xu, Xuefeng Lei, Xiaobo Liu
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2017)
Article
Engineering, Electrical & Electronic
Zicheng Wang, Renbo Wei, Xiaobo Liu
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2017)
Article
Materials Science, Multidisciplinary
Xu Huang, Heng Guo, Kai Wang, Xiaobo Liu
ORGANIC ELECTRONICS
(2017)
Article
Materials Science, Composites
Qian Xiao, Weihua Han, Ruiqi Yang, Yong You, Renbo Wei, Xiaobo Liu
POLYMER COMPOSITES
(2018)
Article
Polymer Science
Yong You, Xuanyi Du, Hua Mao, Xiaohe Tang, Renbo Wei, Xiaobo Liu
POLYMER INTERNATIONAL
(2017)
Article
Chemistry, Physical
Penglun Zheng, Jingchun Liu, Xiaobo Liu, Kun Jia
SOLID STATE IONICS
(2017)
Article
Chemistry, Multidisciplinary
Mengna Feng, Tao Cheng, Xu Huang, Yumin Huang, Xiaobo Liu
Article
Chemistry, Physical
Kun Jia, Pan Wang, Shiliang Wei, Yumin Huang, Xiaobo Liu
APPLIED SURFACE SCIENCE
(2017)
Proceedings Paper
Engineering, Environmental
Lifen Tong, Renbo Wei, Xiaobo Liu
2016 INTERNATIONAL CONFERENCE ON MATERIALS SCIENCE, RESOURCE AND ENVIRONMENTAL ENGINEERING
(2017)