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Online since: November 2025
Authors: Mohamad Nur Fuadi Pargi, Martini Muhamad, Been Seok Yew, Syahril Amin Hashim, Fwen Hoon Wee, Ireana Yusra Abdul Fatah, Nur Haizal Mat Yaakob Ariffin
Characterisation of Fibres from Pandanus Atrocarpus Leaves: Morphology, Functional Structure, Thermal Stability, and Dielectric Properties
B.S.
Presence of longitudinal streaks in the fibre’s structure was observed.
Its degradation spans a wide temperature range, possibly due to the breakdown of lignin complex aromatic structure.
Peng, “Hemicellulose: Structure, chemical modification, and application,” Prog.
Pal, “Lignocellulosic Fibers from Renewable Resources Using Green Chemistry for a Circular Economy,” Glob.
Presence of longitudinal streaks in the fibre’s structure was observed.
Its degradation spans a wide temperature range, possibly due to the breakdown of lignin complex aromatic structure.
Peng, “Hemicellulose: Structure, chemical modification, and application,” Prog.
Pal, “Lignocellulosic Fibers from Renewable Resources Using Green Chemistry for a Circular Economy,” Glob.
Online since: March 2007
Authors: Meng Kao Yeh, Nyan Hwa Tai, Jia Hau Liu, Chien Chao Chiu, Chien Hsin Yang, Shis Hao Tseng, Tsung Yen Tsai, Tai Hao Peng
On the study of nano-composites,
around 70% enhancement of tensile strength was detected when 1.5 wt% MWNTs in the form of
network structure were introduced to the phenolic matrix.
In this work, SWNTs and MWNTs in the form of fluffy structure were synthesized, and its application in nanocomposites and field emitter were studied.
The as-synthesized CNTs in the form of network structure were adopted as the 3-D preform for composites.
Near equal spacing between layers, as shown in Fig. 2, indicates excellent layer structure of the MWNTs.
Physics and Chemistry of Solids, Vol. 61 (2000), p. 1153 14.
In this work, SWNTs and MWNTs in the form of fluffy structure were synthesized, and its application in nanocomposites and field emitter were studied.
The as-synthesized CNTs in the form of network structure were adopted as the 3-D preform for composites.
Near equal spacing between layers, as shown in Fig. 2, indicates excellent layer structure of the MWNTs.
Physics and Chemistry of Solids, Vol. 61 (2000), p. 1153 14.
Online since: December 2016
Authors: Guang Wu Liu, Yan Gang Liu
These results have important implications for designing novel structure of porous materials of high performance for silica aerogels.
The SiO2–TiO2 aerogel exhibits 3-dimensional network structure which contains 60-70 nm spherical solid clusters and pores below 100 nm between them.
This confirms that the aerogel structure is preserved doped with TiO2 power similar to pore size distribution of the conventional aerogels [9].
The thermal conductivity of pure aerogel (0.021 W/m·K) remains lower than that of composited sample at room temperature because of the loose structure.
Schubert, Aerogels-Airy Materials: Chemistry, Structure, and Properties, Angew.
The SiO2–TiO2 aerogel exhibits 3-dimensional network structure which contains 60-70 nm spherical solid clusters and pores below 100 nm between them.
This confirms that the aerogel structure is preserved doped with TiO2 power similar to pore size distribution of the conventional aerogels [9].
The thermal conductivity of pure aerogel (0.021 W/m·K) remains lower than that of composited sample at room temperature because of the loose structure.
Schubert, Aerogels-Airy Materials: Chemistry, Structure, and Properties, Angew.
Online since: October 2011
Authors: Hassan Jumiah, Mansor Hashim, Swee Yin Wong, Leow Chun Yan, Yick Jeng Wong
After the milled powders were subjected to sintering process at 1200°C, formation of single-phase SrTiO3-type cubic (Pm-3m) perovskite structure was observed.
Introduction Strontium titanate (SrTiO3) is an ideal cubic perovskite-type crystal structure which exhibits paraelectric properties at room temperature.
All the three sintered samples exhibited spherical particle shape, non-uniform particle size distributions with porous structure.
A single-phase SrTiO3-type cubic (Pm-3m) perovskite structure was noted after subjected to the sintering process at 1200°C.
JHA: Structural, Dielectric and Ferroelectric Properties of Tungsten Substituted Barium Titanate Ceramics, Asian Journal of Chemistry Vol.21, No. 10 (2009), p. 119.
Introduction Strontium titanate (SrTiO3) is an ideal cubic perovskite-type crystal structure which exhibits paraelectric properties at room temperature.
All the three sintered samples exhibited spherical particle shape, non-uniform particle size distributions with porous structure.
A single-phase SrTiO3-type cubic (Pm-3m) perovskite structure was noted after subjected to the sintering process at 1200°C.
JHA: Structural, Dielectric and Ferroelectric Properties of Tungsten Substituted Barium Titanate Ceramics, Asian Journal of Chemistry Vol.21, No. 10 (2009), p. 119.
Online since: October 2011
Authors: Zi Xuan Zhao, Jing Zhu, Hong Liang Wei, Hui Juan Chu
Preparation and Characterization of Injectable Hybrid Hydrogels Based on Photopolymerziaton
Hong-Liang Weia, Zi-Xuan Zhao b, Hui-Juan Chuc and Jing Zhud
School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450001, PR China
awtroy68@yahoo.com.cn; bzhaozixuan1014@163.com; chuijuan_chu@yahoo.com.cn,
d jingzhu60@163.com
Keywords: Acrylamide; bentonite; injectable hydrogel; photopolymerization
Abstract.
The structure of the hydrogels was characterized by FTIR, DTA techniques.
The structure of the hydrogels was characterized by FTIR, DTA techniques.
Online since: August 2010
Authors: Bao Wei Hao, Yuan Li, Shi Zhao Wang
Based on the analysis of IR,
TG-DTA and XPS, this paper suggests a model about the oleic acid-modified titanium dioxide
nano-structure, and to provide a basis for future applications.
The structure of the symmetric COO- vibration and asymmetrical vibrations of the locations are different.
Based on the analysis of IR, TG-DTA and XPS, we have prepared in oleic acid-modified titanium dioxide nano-structure of the following models: Fig. 5.
Based on the analysis of IR, TG-DTA and XPS, this paper suggests a model about the oleic acid-modified titanium dioxide nano-structure.
Chemistry of Materials. 6(7) (1994), p. 890-898
The structure of the symmetric COO- vibration and asymmetrical vibrations of the locations are different.
Based on the analysis of IR, TG-DTA and XPS, we have prepared in oleic acid-modified titanium dioxide nano-structure of the following models: Fig. 5.
Based on the analysis of IR, TG-DTA and XPS, this paper suggests a model about the oleic acid-modified titanium dioxide nano-structure.
Chemistry of Materials. 6(7) (1994), p. 890-898
Online since: July 2011
Authors: Xiao Dong Fan, Wei Tian, Guang Wen Cheng, Juan Li Li, Jing Xia Wang
Preparation of a certified reference material of trifunctional polypropylene oxide
Jingxia Wang1,a, Xiaodong Fan1, Wei Tian1,b, Guangwen Cheng1, Juanli Li2
1Key laboratory of Physics and Chemistry in Space, Ministry of Education, School of Science, Northwestern Polytechnical University, 127 Youyi xilu, Xi’an 710072, China
2Electro-Optical Materials Department, Xi'an Modern Chemistry Research Institute, 710065, China
awjx@nwpu.edu.cn, bhappytw_3000@163.com
Keywords: certified reference material (CRM), trifunctional polypropylene oxide (TPPO), SEC-MALLS, molecular weight, uncertainty.
The results showed that the chemical structure of TPPO CRM was an anticipatory structure, which was confirmed by IR.
SEC-MALLS received much concern because of its easy operation, precise result and applicability in a large range of molecular weight and chemical structure of polymer compared to other absolute methods [8-12].
Its chemical structure is illustrated in Fig.2, which is characterized using IR (Fig.3).
Fig.1 The product of TPPO CRM Fig.2 Chemical structure of TPPO CRM Fig.3 IR spectrum of TPPO CRM Homogeneity assessment.
The results showed that the chemical structure of TPPO CRM was an anticipatory structure, which was confirmed by IR.
SEC-MALLS received much concern because of its easy operation, precise result and applicability in a large range of molecular weight and chemical structure of polymer compared to other absolute methods [8-12].
Its chemical structure is illustrated in Fig.2, which is characterized using IR (Fig.3).
Fig.1 The product of TPPO CRM Fig.2 Chemical structure of TPPO CRM Fig.3 IR spectrum of TPPO CRM Homogeneity assessment.
Online since: August 2019
Authors: Rattanaphol Mongkholrattanasit, Chi Wai Kan, Phichitphol Jaroensappayanant, Wen Yi Wang, Hei Ting Choi, Rug Ngam Pannarai, Kemachart Surakul
It was found that plasma treatment can enhance the wettability and dyeability of silk fabric via the formation of hydrophilic functional groups in the structure of silk fiber.
Kaplan, Modification of silk fibroin using diazonium coupling chemistry and the effects on hMSC proliferation and differentiation, Biomater. 29(19) (2008) 2829-2838
Kaplan, Modification of silk fibroin using diazonium coupling chemistry and the effects on hMSC proliferation and differentiation, Biomater. 29(19) (2008) 2829-2838
Online since: April 2020
Authors: Chanchana Thanachayanont, Adisorn Tuantranont, Thapanee Sarakonsri, Thammanoon Kapanya
Te-doped and Sn-doped CoSb3 were synthesized to investigate the benefit of this synthesis method for increasing the solubility limit of Te and Sn in the CoSb3 structure.
The increased lattice parameters of CoSb3 host structure ensured that Te and Sn atoms have entered into the Sb sites of CoSb3 host structure [13].
They had more characteristic of a covalent bond in their structure [18].
Partial support from the Science Achievement Scholarship of Thailand (SAST) and Department of Chemistry-Faculty of Science-Chiang Mai University.
[33] Kumari, L., Li, W., Huang, J.Y., Provencio, P.P., Solvothermal synthesis, structure and optical property of nanosized CoSb3 skutterudite.
The increased lattice parameters of CoSb3 host structure ensured that Te and Sn atoms have entered into the Sb sites of CoSb3 host structure [13].
They had more characteristic of a covalent bond in their structure [18].
Partial support from the Science Achievement Scholarship of Thailand (SAST) and Department of Chemistry-Faculty of Science-Chiang Mai University.
[33] Kumari, L., Li, W., Huang, J.Y., Provencio, P.P., Solvothermal synthesis, structure and optical property of nanosized CoSb3 skutterudite.