نتایج جستجو برای: thermogravimetry analysis

تعداد نتایج: 2824606  

2017
Xiang-Chun Li Yizhou Zhang Chun-Yu Wang Yi Wan Wen-Yong Lai Huan Pang Wei Huang

Key Laboratory for Organic Electronics and of Advanced Materials (IAM), Jiangsu Na Advanced Materials (SICAM), Nanjing Univ Wenyuan Road, Nanjing 210023, China. E-m Key Laboratory of Flexible Electronics (KLOF Jiangsu National Synergetic Innovation C Nanjing Tech University (NanjingTech), 3 China. E-mail: [email protected] College of Chemistry and Chemical Engin Jiangsu 225002, China. E-m...

Journal: :Molecules 2014
Liliana Carneiro Ana R Silva Peter S Shuttleworth Vitaly Budarin James H Clark

A chiral bis(oxazoline) bearing CH2OH groups was synthesized from a commercial bis(oxazoline) and characterized by 1H- and 13C-NMR, high resolution ESI-mass spectrometry and FTIR. The corresponding copper(II) complex was immobilized onto the surface of a mesoporous carbonaceous material (Starbon® 700) in which the double bonds had been activated via conventional bromination. The materials were ...

2016
Soliman Abdalla Nabil Al-Aama Maryam A. Al-Ghamdi

The advantages of photo polymerization methods compared to thermal techniques are: rapid cure reactions, low energy demands, solvent free requirements and room temperature use. In order to form a macromer, polycaprolactone (PCL) was cross-linked via ultraviolet power with 2-isocyanatoethyl methacrylate. Different methods of characterization were carried out: estimation of swelling capacity, adh...

2012
Soon Wei Chook Chin Hua Chia Sarani Zakaria Mohd Khan Ayob Kah Leong Chee Nay Ming Huang Hui Min Neoh Hong Ngee Lim Rahman Jamal RahaMohdFadhilRajaAbdul Rahman

Silver nanoparticles and silver-graphene oxide nanocomposites were fabricated using a rapid and green microwave irradiation synthesis method. Silver nanoparticles with narrow size distribution were formed under microwave irradiation for both samples. The silver nanoparticles were distributed randomly on the surface of graphene oxide. The Fourier transform infrared and thermogravimetry analysis ...

2014
Tetsuya Tsuda Eiko Mochizuki Shoko Kishida Kazuki Iwasaki Katsuhiko Tsunashima Susumu Kuwabata

Room-temperature ionic liquid (RTIL), which is a liquid salt at or below room temperature, shows peculiar physicochemical properties such as negligible vapor pressure and relatively-high ionic conductivity. In this investigation, we used six types of RTILs as a liquid material in the pretreatment process for scanning electron microscope (SEM) observation of hydrous superabsorbent polymer (SAP) ...

2012
R. M. Deshpande A. Sharma H. Delmas

Biphasic hydroformylation of 1-octene was performed using rhodium sulfoxantphos catalyst dissolved in [BuPy][BF4] ionic liquid. Preliminary experiments proved this system to retain the catalytic complex within the ionic liquid phase and to maintain a high selectivity towards the linear aldehyde (n:iso ratio of 30) over several cycles. Process parameter investigation showed a first order depende...

2013
K. Sato K. Numata K. Fujimoto

The mechanism of self-assembly induced by H2O molecules is studied for layered saponite nanoparticles and zeolite with the cage structure by means of positronium (Ps) annihilation spectroscopy together with thermogravimetry and differential thermal analysis (TG-DTA). Prior to hydration the saponite exhibits two kinds of open spaces with their sizes of ∼3 Å and ∼9 Å, whereas open spaces with the...

2011
Samer Hasan Hussein Al Ali Mothanna Al-Qubaisi Mohd Zobir Hussein Zulkarnain Zainal Muhammad Nazrul Hakim

BACKGROUND A new simple preparation method for a hippurate-intercalated zinc-layered hydroxide (ZLH) nanohybrid has been established, which does not need an anion-exchange procedure to intercalate the hippurate anion into ZLH interlayers. METHODS The hippuric acid nanohybrid (HAN) was prepared by direct reaction of an aqueous suspension of zinc oxide with a solution of hippuric acid via a one...

2011
Kui-Hua Zhang Qiao-Zhen Yu Xiu-Mei Mo

The native extracellular matrix (ECM) is composed of a cross-linked porous network of multifibril collagens and glycosaminoglycans. Nanofibrous scaffolds of silk fibroin (SF) and hydroxybutyl chitosan (HBC) blends were fabricated using 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP) and trifluoroacetic acid (TFA) as solvents to biomimic the native ECM via electrospinning. Scanning electronic microscop...

2015
Kwang-Mo Kim Sahng Hyuck Woo Ju Sung Lee Hyun Sic Park Jinwon Park Byoung Ryul Min

Polyvinylidene fluoride (PVDF) ultrafiltration (UF) membrane combined with polyvinylidene fluoride-graft-2-hydroxyethyl acrylate (PVDF-g-PHEA) was fabricated via non-solvent induced phase separation (NIPS). In this study, PVDF-g-PHEA was synthesized via atom transfer radical polymerization (ATRP) method, and then synthesized graft copolymer was characterized using Fourier transform infrared spe...

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