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Online since: March 2011
Authors: Te Fu Qin, Gai Yun Li
It is generally thought that molecular weight, molecular weight distribution and molecular structure are the main factors affecting flowing properties of polymers [7].
The reason is therefore attributed to the lower structure regularity and higher steric hindrance of LWF due to the existence of degraded and phenolated wood components.
Scheib: Chemistry and Application of Phenolic Resins (Spinger-Verlag, Germany 1979) [11] L.Z.
The reason is therefore attributed to the lower structure regularity and higher steric hindrance of LWF due to the existence of degraded and phenolated wood components.
Scheib: Chemistry and Application of Phenolic Resins (Spinger-Verlag, Germany 1979) [11] L.Z.
Online since: December 2013
Authors: Suriati Sufian, Nurlidia Binti Mansor, Zakaria B. Man, Sity Juaeiriah Samsudin
Lock
Key
Fig. 1 Lock (Enzyme) and Key (Substrate) Hypothesis
To date, thousand of chemicals have been evaluated as potential urease inhibitors and can be classified according to their structures and interaction with urease.
Tejo et al. (2011), NBPT found in Agrotain and Arborite has some visible effects on plant structure [8].
Institute of Chemistry and Chemical Engineering.
Tejo et al. (2011), NBPT found in Agrotain and Arborite has some visible effects on plant structure [8].
Institute of Chemistry and Chemical Engineering.
Online since: December 2018
Authors: Eduardo C. Atayde Jr., Susan D. Arco, Reynaldo Carlos K. Montalbo
Arco1,2,c
1Institute of Chemistry, Univeristy of the Philippines, Diliman, Quezon City 1101, Metro Manila, Philippines
2Natural Sciences Research Institute, Univeristy of the Philippines, Diliman, Quezon City 1101, Metro Manila, Philippines
aprinz_jr21@yahoo.com, b*rkmontalbo@up.edu.ph, csdrarco@yahoo.com
Keywords: smart polymer, drug delivery, pH-responsive, RAFT polymerization
Abstract.
Furthermore, different polymer structures may yield different properties.
This enabled them to self-assemble into micellar systems and incorporate hydrophobic molecules into their structure.
Furthermore, different polymer structures may yield different properties.
This enabled them to self-assemble into micellar systems and incorporate hydrophobic molecules into their structure.
Online since: April 2013
Authors: Ahmad Jais Alimin, Shahrul Azmir Osman, V.S. Liong
The TKE during suction stroke can be found out from the simulations to verify the generation of air-fuel structure inside the cylinder, as Fig 2.
Lastly, the other in-cylinder feature characteristics to examine the air flow inside the cylinder and perceive the effect of combustion chamber shape is the unsymmetrical structure of the flow as shown in Fig 4.
Journal of Natural Gas Chemistry, 2010. 19(5): p. 539-547
Lastly, the other in-cylinder feature characteristics to examine the air flow inside the cylinder and perceive the effect of combustion chamber shape is the unsymmetrical structure of the flow as shown in Fig 4.
Journal of Natural Gas Chemistry, 2010. 19(5): p. 539-547
Online since: September 2021
Authors: Ivan Brink, Vera Kashparova, Svetlana Kolesnik, Denis Tokarev, Victor Klushin
From this point of view, it is of interest to develop composites using a goose feather as a bio-filler because of the fractal structure of downs and feathers (Fig.1a) must provide high mechanical strength of composites with their participation.
Structure of goose down (a) and HMF-resin (b) In this work, composite materials with goose feather wastes as a filler and resinous waste from HMF production as a binder have been developed (Fig. 2).
Ananikov, Technological aspects of fructose conversion to high-purity 5-hydroxymethylfurfural, a versatile platform chemical, Russian Journal of Organic Chemistry. 52(6) (2016) 767-771
Structure of goose down (a) and HMF-resin (b) In this work, composite materials with goose feather wastes as a filler and resinous waste from HMF production as a binder have been developed (Fig. 2).
Ananikov, Technological aspects of fructose conversion to high-purity 5-hydroxymethylfurfural, a versatile platform chemical, Russian Journal of Organic Chemistry. 52(6) (2016) 767-771
Online since: October 2017
Authors: Ingmārs Birks, Zane Grigale-Soročina, Mārtiņš Kalniņš
Processing Technology Development for
Organic Clay Suspension System
Zane Grigale-Soročina1,2,a*, Ingmārs Birks2,b and Mārtiņš Kalniņš1,c
1Institute of Polymer Materials, Faculty of Material Science and Applied Chemistry,
Riga Technical University, Paula Valdena Str. 3, LV-1048 Riga, Latvia
2Intelligent Materials and Technology Competence Center, Aizkraukles Str.21-313, LV-1006,
Riga, Latvia
azane.grigale@kineticsbeauty.com, bingmars.birks@kineticsbeauty.com, cmartinsk@parks.lv
Keywords: thixotropy; processing technology; organic clays; silica.
Organoclays produced from hectorites and bentonites and termed "water-swellable" can be readily dispersed (not dissolved) in water where they develop a three-dimensional colloidal structure which provides thickening and other desirable rheological effects.
This colloidal structure provides thickening and other desirable rheological effects [5].
Organoclays produced from hectorites and bentonites and termed "water-swellable" can be readily dispersed (not dissolved) in water where they develop a three-dimensional colloidal structure which provides thickening and other desirable rheological effects.
This colloidal structure provides thickening and other desirable rheological effects [5].
Online since: October 2010
Authors: Qi Hua Jiang, Hai Dong Zhang, Bin Xiang, Hai Yun He, Ping Deng
Computer simulation of an synthetic ultraviolet absorbent in the interface of DMB and DMF
Qihua Jiang1, a, Haidong Zhang2,b,Bin Xiang3,c, Haiyun He3,d, Ping Deng1,e,*
(1Pharmaceutical School, Chongqing Medical University, Chongqing 400016, China;
2Engineering Research Centre for Waste Oil Recovery Technology and Equipment,Ministry of Education, Laboratory of Applied Catalysis, Chongqing Technology and Business University, Chongqing 400067, China;
3 College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China;)
aemail: index2008@163.com; bemail: haidongzhang@ctbu.edu.cn
cemail: bbxiang2001@yahoo.com.cn; demail: hehaiyun1979@yahoo.com.cn
*Corresponding Author.
What’s more, the radicals resulted from the aging of aromatic polyurethane will react with UVA or HALS to degrade its structure and reduce its concentration in surface layer [6].
(C for the perfluoroalkyl chains and D for the remains) The interaction energy of such beads is calculated by the equation of Ei = xRT/1000, in which x is the interaction parameter and obtained by the calculation finished in Blend module of Materials Studio (MS) using optimized structures of each beads.
What’s more, the radicals resulted from the aging of aromatic polyurethane will react with UVA or HALS to degrade its structure and reduce its concentration in surface layer [6].
(C for the perfluoroalkyl chains and D for the remains) The interaction energy of such beads is calculated by the equation of Ei = xRT/1000, in which x is the interaction parameter and obtained by the calculation finished in Blend module of Materials Studio (MS) using optimized structures of each beads.
Online since: June 2011
Authors: Christophe Sigli, Benjamin Decreus, Frédéric de Geuser, Alexis Deschamps, Patricia Donnadieu
Since nucleation of T1 precipitates is predicted by the currently accepted models to require the dissociation of a dislocation, it can be guessed that a difference in incubation time must be related to the local chemistry and structure at the dislocations, like a different distribution of Ag and Mg in relation with the presence of an extensive d’ precipitation in the matrix, or the formation of small precipitate structures prior to the formation of T1 at the dislocation lines.
Online since: February 2014
Authors: Ren Chen, Ming Xia Feng, Qiang Li
Introduction
For those physical chemistry processes just as steelmaking process, the research by mechanics hasn’t been intensive enough.
Structure of BOF endpoint prediction model In the training process, the reducing of error which be divided into several stages are processed in turn,and the training of each stage shows well downtrend as the parameter t increasing.
Based on the nonlinear BI method, the prediction model has more advantages (such as high speed, high precision, simple and practical) compare to BI network which has same structure.
Structure of BOF endpoint prediction model In the training process, the reducing of error which be divided into several stages are processed in turn,and the training of each stage shows well downtrend as the parameter t increasing.
Based on the nonlinear BI method, the prediction model has more advantages (such as high speed, high precision, simple and practical) compare to BI network which has same structure.
Online since: December 2012
Authors: Shi Wen He
The structure of as-cast rods was characterized by X-ray diffractometry(XRD) with Cu Kα radiation.
And the valence electron difference of a compound Δn is defined as follows [22]: (4) The element electron concentration ni uses the number of (s+d) electrons for transition metals, and the number of(s+p) electrons for element with a p electronic structure.
Dean: Lange’s handbook of chemistry (McGraw-Hill, New York 1999) [19] S.
And the valence electron difference of a compound Δn is defined as follows [22]: (4) The element electron concentration ni uses the number of (s+d) electrons for transition metals, and the number of(s+p) electrons for element with a p electronic structure.
Dean: Lange’s handbook of chemistry (McGraw-Hill, New York 1999) [19] S.