1. <center id="ihmue"></center>
        <mark id="ihmue"></mark>

        <samp id="ihmue"></samp>

        精品国产午夜理论片不卡_99这里只有精品_黑人大战亚洲人精品一区_精品国产免费一区二区三区香蕉_99久久精品美女高潮喷水

        手機(jī)版

        掃一掃,手機(jī)訪(fǎng)問(wèn)

        關(guān)于我們 加入收藏

        美國(guó)布魯克海文儀器公司上海代表處

        7 年金牌會(huì)員

        已認(rèn)證

        撥打電話(huà)
        獲取底價(jià)
        提交后,商家將派代表為您專(zhuān)人服務(wù)
        立即發(fā)送
        點(diǎn)擊提交代表您同意 《用戶(hù)服務(wù)協(xié)議》
        當(dāng)前位置:
        布魯克海文 >公司動(dòng)態(tài) >

        An amphiphilic and photoswitchable organocatalyst for the aldol reaction based on a product-imprinted polymer

        An amphiphilic and photoswitchable organocatalyst for the aldol reaction based on a product-imprinted polymer
        布魯克海文  2018-11-29  |  閱讀:1572

        手機(jī)掃碼查看

        作者:An-xun Zhenga, Cheng-bin Gonga, Wei-jing Zhanga, Qian Tanga, Hai-rong Huanga, Cheuk-fai Chowb, Qian Tanga

        aThe Key Laboratory of Applied Chemistry of Chongqing Municipality, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China

        bDepartment of Science and Environmental Studies, The Education University of Hong Kong, Hong Kong

         

        摘要:A series of amphiphilic molecularly imprinted polymers (MIP1, MIP2, MIP3, MIP4, MIP5, and MIP6) containing hydrophobic photoresponsive sites and hydrophilic catalytically active sites were fabricated using bifunctional monomers. These polymers were characterized by scanning electron microscopy, N2 adsorptiondesorption analysis, Fourier Transform infrared spectroscopy, thermal gravimetric analysis, and ultravioletvisible spectroscopy. The catalytic activity of the amphiphilic molecularly imprinted polymer was investigated towards the aldol reaction between p-nitroaldehyde and acetone (a molecular enlargement reaction) in a mixed solvent of DMSO and water at room temperature. The polymer catalyst MIP3 performs best, and displayed good conversions with low catalyst loading (5 mol% of l-hydroxyproline with respect to the aldehyde) and photoswitching properties (photo-regulated conversion difference of 20%). Compared with the corresponding non-imprinted polymer, a higher binding capacity, higher conversion, and better photoswitching properties were obtained when the molecularly imprinted polymer was used as the catalyst, illustrating the importance of the specific cavities in the molecularly imprinted polymer.

                                                         


        虛擬號(hào)將在 秒后失效

        使用微信掃碼撥號(hào)

        為了保證隱私安全,平臺(tái)已啟用虛擬電話(huà),請(qǐng)放心撥打(暫不支持短信)
        留言咨詢(xún)
        (我們會(huì)第一時(shí)間聯(lián)系您)
        關(guān)閉
        留言類(lèi)型:
             
        *姓名:
        *電話(huà):
        *單位:
        Email:
        *留言?xún)?nèi)容:
        (請(qǐng)留下您的聯(lián)系方式,以便工作人員及時(shí)與您聯(lián)系?。?/div>
        色欲人妻综合网_99这里只有精品_黑人大战亚洲人精品一区_精品国产免费一区二区三区香蕉
          1. <center id="ihmue"></center>
            <mark id="ihmue"></mark>

            <samp id="ihmue"></samp>