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Effect of Heat-setting Temperature on the Structure and Performance of Ultra-fine Denier PET Full Drawing Yarn Fenglei Shen1, a, Guoqiang Chen2, b, Jiangzhong Ding3, c and Juyan Dai4, d 1College of textile and clothing engineering, Soochow University, Suzhou, China, 215006 1College of chemistry, chemical engineering and material science, Soochow University, Suzhu, China, 215123 1Jiangsu Hengli chemical fiber Co.
In this paper, the effect of heat-setting temperature on the structure of ultra-fine denier PET FDY was studied.
From the Fig.1 and Fig.2, the XRD patterns of each PET-FDY clearly indicated that crystalline structure formed in the FDY.
The heat-set temperature had great influence on structure and performance of ultra-fine denier PET-FDY.
Fiber chemistry, 2007, 39(5): 355-362 [2].

Theoretical Study on the Reaction of Et3GeCH=CH2 with Et3SiOH Xincheng Chena, Xiaoyun Hanb, Wanyong Mac,* Ligang Gaid School of chemistry and pharmaceutical engineering, Shandong Polytechnic University, Jinan, 250353, China acxc09200@163.com, blan.qing.yun@163.com, cmawy@spu.edu.cn(*Corresponding author), dliganggai@126.com Key words: Transition state; Rate constant; Kinetics calculation.
The reaction of Et3GeCH=CH2 + Et3SiOH → Et3SiO–Ge–Et3 + CH2=CH2 has been studied using quantum chemistry methods.
All the electronic structure calculations are performed by Gaussian03 program package[7].
In the structure of TS, the Ge–C bond and the O–H bond, which will be broken are stretched by 15.9% and 33.0% compared to the reactants respectively.

The research provides reliable references for university library management to improve the book collection structure.
The utilization rate of philosophy, religion and chemistry and art books is high, respectively 68.2%, 64.6% and 50.7%, higher than 50%.
Whether the collection structure agrees with readers’ needs determines the utilization ratio of books, so the collection structure is especially important.
In order to rationalize the library collection structure, scientific and reasonable purchase plan should be established based on the followings.
In order to promote reasonable collection structure in university library, it is important to enhance the communication between library and readers.

The crystalline structure of samples was evaluated by X-ray diffraction (XRD, Philips PW1729).
The entire morphology of Ca(OH)2 are short nanorod like structures.
XRD analysis demonstrated crystal hexagonal structures.
Boynton, Chemistry and Technology of Lime and Limestone, second ed., Chemistry and Technology of Lime and Limestone, 1980
Ball, Chemistry:Principles and Practice, third ed., Cengage Learning, 2009.

Irie, Chemistry Letters, Japan, vol. 32, (2003), p. 1078
Masunov, The Journal of Physical Chemistry A, vol. 113, (2009), 8409
Tian, Journal of Mathematical Chemistry, vol. 16, (2006), p.3685
Chen, Chinese Journal of Chemistry, vol. 24, (2006), p. 463
Irie, The Journal of Physical Chemistry B, vol. 107, (2003), p. 8372.

Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, st.
Pectin, montmorillonite, hybrid composite, structure, sorption properties.
The effect of the chemical structure of pectin to the properties of composite materials was shown.
Probably, the thickness of the cross-linked pectin macromolecules exceeds the value of interlayer spaces in the structure of Mt.
Lisichkin, Sorption in the chemistry of rare earth elements, Russ.

Synthesis of Mesoporous Silica from Tetraethylorthosilicate by Using Sodium Ricinoleic as a Template and 3-Aminopropyltrimethoxysilane as Co-Structure Directing Agent with Volume Variation of Hydrochloric Acid 0.1 M Andriayani, Andriayani 1,a, Seri Bima Sembiring1, Nida Aksara1,b and Nofrijon Sofyan2*,c 1Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Sumatera Utara, Medan 20155 2Department of Metallurgical and Materials Engineering, University of Indonesia, Depok 16424.
In accordance with International Union of Pure and Applied Chemistry (IUPAC) classification, porous materials can be divided into: (i) microporous (d < 2 nm), (ii) mesoporous (2 nm < d < 50 nm) and (iii) macroporous (d > 50 nm) [8].
Garcia-Bennett et al. used N-lauryl glutamic in water and aminopropyltriethoxysilane (APS) as a co-structure directing agents (CDSA) and tetraethylorthosilicate as precursor [11].
This is due to the structure of the carbon chain ricinoleic template, which has one double bond at the C-9 atom and one hydroxyl group at the C-12 atom, is thermodynamically easier to form spherical micelles [15].
Michael McKee of Chemistry and Biochemistry Department, Auburn University for his valuable discussion and Dr.

Synthesis and Characterization of SnSe Nanowires by Solvothermal Method Jian LI1, a, Long YAN1, b and HuiJin LIU1, c 1Key Laboratory of Low Metamorphic Coal Clean Utilization of Shaanxi Province, College of Chemistry & Chemical Engineering, Yulin University, Yulin, 719000, China 2Key Laboratory of Low Metamorphic Coal Clean Utilization of Shaanxi Province, College of Chemistry & Chemical Engineering, Yulin University, Yulin, 719000, China 3Key Laboratory of Low Metamorphic Coal Clean Utilization of Shaanxi Province, College of Chemistry & Chemical Engineering, Yulin University, Yulin, 719000, China alijian5220@163.com, bylyanlong@126.com,cliuhuijing0205@ sina.com Keywords: Solvothermal Method; Nanowires; Characterization Abstract.
This Raman spectrum, together with the above XRD pattern, gives clear structure evidence for the single phase of SnSe for the as-prepared product.
XRD, SEM, RS and UV-vis characterizations confirmed the structure, composition and morphology of the as-obtained nanowires.
Electronic structure of tin monochalcogenides from SnO to SnTe.
Crystal and electronic band structure of Cu2ZnSnX4 ( X = S and Se) photovoltaic absorbers: First-principles insights.

It was also found that the crystalline structure of native cellulose was destroyed and the regenerated cellulose was mainly composed of amorphous structure.
Journal of Agricultural and Food Chemistry (2011), 59: 8691-8701
Green Chemistry (2003), 5: 443-447
Green Chemistry (2008), 10: 44-46
Journal of Agricultural and Food Chemistry (2009), 57: 1814-1820.

This suggest, V2O5 act as modifier in the glass network which breaks and leads to discontinuity in the glass structure and decrease the rigidity of the glass structure.
(c) The results of Poisson’s ratio suggest that high crosslink density in the glass network structure.
El-latif, Ultrasonic studies on ternary TeO2 - V2O5 - Sm2O3 glasses, Materials Chemistry and Physics. 61 (1999) 103–109
[12] A.A El-moneim, Acoustical and structural properties of 65SiO,-15PbO-5CaO-( 15-x)K,O-xNa,O glass system, Materials Chemistry and Physics. 52(97) (1998) 36–40
Anavekar, Elastic properties and spectroscopic studies of Li2O–B2O3–V2O5 glasses, Materials Chemistry and Physics. 112(2) (2008) 359-365