Results 21 to 30 of about 530 (176)

Form-stable benzoxazine-urethane alloys for thermally reversible light scattering materials

eXPRESS Polymer Letters, 2019
Thermally reversible light scattering (TRLS) materials based solely on benzoxazine-urethane (BA-a/PU) alloys were successfully fabricated and demonstrated in this work. The alloys displayed the opaque state below 40 °C. The alloys were transformed to the
T. Parnklang, K. Boonyanuwat, P. Mora, S. Ekgasit, S. Rimdusit   +4 more
doaj   +1 more source

Improvement of thermal conductivity and mechanical properties for polybenzoxazine composites via incorporation of epoxy resin and segregated structure

Materials Research Express, 2020
Developing tendency of increasing integration in electronic components filed led to the demand for thermally conductive polymer materials. Forming a segregated structure with thermally conductive fillers in the matrix has been proven to be a promising ...
Yi Wang, Wei Wu, Dietmar Drummer, Chao Liu, Florian Tomiak, Kevin Schneider   +5 more
doaj   +1 more source

Thermal Degradation Mechanisms of Polybenzoxazines [PDF]

, 2011
This chapter explains the thermal degradation processes of various Polybenzoxazines and the degradation mechanisms. The structural effects of phenols and amines on the thermal degradation of polybenzoxazines are investigated systematically. The thermal decomposition studies of polybenzoxazines are sometimes difficult because a large number of ...
Hacaloǧlu J., Uyar T., Ishida H.
openaire   +3 more sources

Intermolecular hydrogen bonding effects on the reaction of dianisidine, bisphenol A (BPA) and formaldehyde

Results in Chemistry, 2023
The synthesis of benzoxazines is a fundamental step in obtaining polybenzoxazine resins, understanding its formation mechanism is important to improve the properties of these resins.
Alejandro Martínez-Manjarres, Rodolfo Quevedo   +1 more
doaj   +1 more source

Benzoxazine/amine-based polymer networks featuring stress-relaxation and reprocessability

Frontiers in Soft Matter, 2023
Amines as additives in benzoxazines are known to beneficially affect the polymerization temperature and furthermore to allow for partially reversible reaction steps yielding however a non-dynamic polybenzoxazine network. This contribution proves that the
Lea Pursche, Lea Pursche, Adrian Wolf, Adrian Wolf, Tobias Urbaniak, Katharina Koschek, Katharina Koschek   +6 more
doaj   +1 more source

Nitrogen-Doped Hierarchically Porous Carbons Derived from Polybenzoxazine for Enhanced Supercapacitor Performance

Nanomaterials, 2019
Nitrogen-doped hierarchically porous carbons (HPCs), which are synthesized from benzoxazine resins, were successfully prepared following the processes of polymerization, carbonization, and potassium hydroxide (KOH) activation.
Yanhui Wang, Liyan Dong, Guiping Lai, Meng Wei, Xingbi Jiang, Lizhong Bai   +5 more
doaj   +1 more source

Structure and Performance of Benzoxazine Composites for Space Radiation Shielding

Molecules, 2020
Innovative multifunctional materials that combine structural functionality with other spacecraft subsystem functions have been identified as a key enabling technology for future deep space missions.
Scott Winroth, Chris Scott, Hatsuo Ishida   +2 more
doaj   +1 more source

Enhancing the toughness of polybenzoxazines through multiple sacrificial bonds for improved overall performance

Journal of Materials Research and Technology
The toughening modification of polybenzoxazine is a crucial approach for expanding its application. However, enhancing the toughness of polybenzoxazine poses challenges in concurrently improving comprehensive properties, such as thermal stability, while ...
Hongrui Liang, Haolang Liu, Yubo Chen, Yongxi Cui, Tongan Bu, Zhi Wang   +5 more
doaj   +1 more source

Thermo‐Fluorescent Bactericidal Quantum Dots Based Smart Multifunctional Textiles via Molecular Surface Engineering and 3D‐Printed Interlocked Architectures

Advanced Healthcare Materials, Volume 15, Issue 19, 22 May 2026.
A versatile approach is presented for fabricating smart multifunctional textiles by integrating thermo‐fluorescent carbon dot/polymer nanocomposite coatings with 3D‐printed interlocked architectures. The fabrics exhibit temperature‐responsive fluorescence, durable hydrophobicity, strong antibacterial and antioxidant activity, and enhanced UV protection.
Poushali Das, Sayan Ganguly, Parham Khoshbakht Marvi, Misha Muthalali, Fatemeh Parniani, Shiza Hassan, Xiaowu (Shirley) Tang, Seshasai Srinivasan, Amin Reza Rajabzadeh   +8 more
wiley   +1 more source

Non-destructive evaluation of the curing of a polybenzoxazine nanocomposite blend for space applications using fluorescence spectroscopy and predictive mechanical modelling

Polymer Testing, 2023
In this study, we employ fluorescence spectroscopy to monitor the curing process of a novel polybenzoxazine (PBZ) resin blend containing a polyhedral oligomeric silsesquioxane (POSS) reagent in a non-destructive way and compare it with the differential ...
Kyungil Kong, Joseph Gargiuli, George Worden, Lucas Lu, Katharine Robson Brown, Ian Hamerton   +5 more
doaj   +1 more source