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Polymerization and chiroptical behavior of polymethacrylamides bearing a bulky oxazoline pendant
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4Â¥2014-02-23 15:57:46
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xavier04

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Accession number:       
20072510667355
        Title:        Optically active polymethacrylamides bearing a bulky oxazoline pendant: Synthesis and characterization
        Authors:         Fu, Zheng1; Xi, Xiujuan1; Jiang, Liming1 ; Shen, Zhiquan1
        Author affiliation:        1 Department of Polymer Science and Engineering, Zhejiang University, Key Laboratory of Macromolecular Synthesis and Functionalization, Hangzhou, 310027, China
        Corresponding author:         Jiang, L. (cejlm@zju.edu.cn)
        Source title:        Reactive and Functional Polymers
        Abbreviated source title:        React Funct Polym
        Volume:        67
        Issue:        7
        Issue date:        July 2007
        Publication year:        2007
        Pages:        636-643
        Language:        English
        ISSN:         13815148
        CODEN:         RFPOF6
        Document type:        Journal article (JA)
        Publisher:        Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands
        Abstract:        A novel type of chiral methacrylamide derivatives, N-[o-(4-phenyl-4,5-dihydro-1,3-oxazol-2-yl)phenyl]methacrylamide ((R)-PhOPMAM), N-[o-(4-isopropyl-4,5-dihydro-1,3-oxazol-2-yl)phenyl]methacrylamide ((S)-PriOPMAM), and N-[o-(4-isopropyl-4,5-dihydro-1,3-oxazol-2-yl)phenyl]methacrylamide ((S)-MeOPMAM), was synthesized and radically polymerized to the corresponding polymers in moderate yields. The polymerization characteristics and the chiroptical behavior of the resultant polymers have been examined in detail by using circular dichroism (CD), UV-Vis, and NMR spectroscopies in comparison with our previous observation. It was found that the oxazoline moieties have an effective influence on both the polymerization process and the optical activity of obtained polymers. Especially, the levorotatory monomer (S)-MeOPMAM ([¦Á]D25 = - 7.7 ¡ã) was transformed to the polymers with dextrorotation activity ([¦Á]D25 = + 102.0 ¡ã to + 117.1 ¡ã), indicating the polymer main chain might exist a helical conformation. Also, the chiral recognition ability was briefly evaluated by 1H NMR technique for the poly(OPMAM)s. © 2007 Elsevier Ltd. All rights reserved.
        Number of references:        29
        Main heading:         Organic polymers
        Controlled terms:         Dichroism  -  Free radical polymerization  -  Nitrogen compounds  -  Nuclear magnetic resonance
        Uncontrolled terms:         Methacrylamide  -  Optical activity  -  Oxazoline
        Classification code:         741.1 Light/Optics -  804.1 Organic Compounds -  815.1.1 Organic Polymers -  815.2 Polymerization -  931.2 Physical Properties of Gases, Liquids and Solids
        Treatment:         Experimental (EXP)
        DOI:        10.1016/j.reactfunctpolym.2007.04.005
        Database:        Compendex
                Compilation and indexing terms, © 2013 Elsevier Inc.
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2Â¥2014-02-19 13:09:51
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glenda007982

½ð³æ (СÓÐÃûÆø)

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3Â¥2014-02-19 15:21:53
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fallsoft

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glenda007982: ½ð±Ò+2, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2014-03-23 18:38:19
Accession number:       
20141117443084
        Title:        Application of Matlab data processing system in research of drug microemulsion
        Authors:         Wei, Hong1 Email author bailing8861@sina.com; Lu, Gang2 Email author bailing8861@sina.com; Lu, Yi Chen3 Email author juntinglu@126.com; Fu, Zheng1 Email author fz19820528@163.com
        Author affiliation:        1 Pharmaceutical sciences, Shandong Medical college, Erhuannan Road 5460, Jinan 250002, China
                2 PLA Department, Shandong Xintai, China
                3 School of foreign languages and literature, Shandong University, China
        Corresponding author:         Fu, Z. (fz19820528@163.com)
        Source title:        Advanced Materials Research
        Abbreviated source title:        Adv. Mater. Res.
        Volume:        887-888
        Monograph title:        Advances in Materials and Materials Processing IV
        Issue date:        2014
        Publication year:        2014
        Pages:        623-626
        Language:        English
        ISSN:         10226680
        ISBN-13:         9783038350149
        Document type:        Conference article (CA)
        Conference name:        2013 4th International Conference on Advances in Materials and Manufacturing, ICAMMP 2013
        Conference date:        December 18, 2013 - December 19, 2013
        Conference location:        Kunming, China
        Conference code:         102947
        Publisher:        Trans Tech Publications
        Abstract:        A new O/W microemulsion system for transdermal matrine delivery was developed in order to improve the skin permeability and solubility of matrine. Various factors were investigated including solubility of matrine,the skin permeability of matrine aiming to choose suitable surfactants, cosurfactants and oils. By drawing the pseudo-ternary phase diagrams, the basic prescription of microemulsion were determined. A simplex lattice experiment design was adopted to optimize the composition of microemulsions.The mathematical software Matlab be used to calculate the predicted values to determine the optimization of microemulsion formulation. © (2014) Trans Tech Publications, Switzerland.
        Number of references:        8
        Main heading:         MATLAB
        Controlled terms:         Data processing  -  Microemulsions  -  Optimization  -  Solubility
        Uncontrolled terms:         Application of matlabs  -  Data processing systems  -  Experiment design  -  Mathematical software  -  O/W microemulsions  -  Pseudoternary phase diagrams  -  Simplex lattice  -  Skin permeability
        Classification code:         723.2 Data Processing and Image Processing -  801.4 Physical Chemistry -  804 Chemical Products Generally -  921 Mathematics -  921.5 Optimization Techniques
        DOI:        10.4028/www.scientific.net/AMR.887-888.623
        Database:        Compendex
                Compilation and indexing terms, © 2013 Elsevier Inc.
5Â¥2014-03-23 07:25:11
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