31,145 research outputs found
Synthesis and application of some novel functional polymers via controlled radical polymerization and click chemistry
Full text linkThe objective of this thesis was to prepare thermoresponsive PEG-based
homopolymers and copolymers by combination of cobalt-mediated catalytic
chain-transfer polymerization (CCTP) and thiol-ene “click” chemistry and
prepare well-defined glycopolymers via “living” polymerization and “click”
chemistry.
The effect of different catalysts for the nucleophilic mediated thiol-ene
reaction was investigated using model compounds, both monomers and
oligomers obtained by CCTP. Different catalysts, including pentylamine and
hexylamine (primary amines), triethylamine (tertiary amine), and two different
phosphines, dimethylphenylphosphine (DMPP) and tris(2-carboxyethyl)
phosphine (TCEP), were investigated in the presence of different thiols. The
optimum reaction conditions for nucleophile mediated thiol-ene click reactions
were investigated.
Thermoresponsive PEG-based homopolymers and copolymers of
OEGMEMA obtained by CCT were modified using thiol-ene click chemistry
with a variety of different functional thiol compounds to yield functional
thermoresponsive polymers in high yield. The effect of different solvent systems
for based catalyzed thiol-ene reaction was investigated in the presence of
different functional thiols.
The ATRP polymerization of TMS-PgMA and TIPS-PgMA and ROP
polymerization of aliphatic polyester were investigated. A maleimide functional
initiator was used in order to achieve post conjugation of nanoparticles for drug
delivery. Moreover, the disulfide based bifunctional initiator was introduced into
the midpoint of the polymer chain, which could break down to afford the
corresponding polymer chain with thiol end group under the reducing condition.
The thiol-terminated polymer was also post-functionalized via thiol-ene click
chemistry. In addition, the aliphatic polycarbonate is a biocompatible and
biodegradable polymer, which is widely used in medical and pharmaceutical
applications. The subsequent introduction of sugar moiety to the reactive
polymer chain via CuAAC click reaction and then the interactions between
glycopolymers and lectins were investigated by Surface Plasmon Resonance
(SPR) and Quartz Crystal Microbalance with Dissipation (QCM-D).
The controlled SET-LRP polymerization of TMS-PgMA and SET-RAFT
polymerization PgMA with the intact alkyne at ambient temperature were
investigated. A maleimide functional initiator and CPDB, as the chain transfer
agent have been employed. The introduction of maleimide moiety was to allow
for post polymerization conjugation to peptides via reaction with cysteines. The
subsequent introduction of sugar azides to click with the reactive polymer
containing alkyne group and the glycopolymers through CuAAC was also
investigated. The glycopolymer has been successfully prepared combining the
SET-LRP/SET-RAFT and CuAAc click chemistry at ambient temperature
Ban dao ti yi zhi jie gou zai guang cui hua he guang dian cui hua zhong de yan jiu
No full textLi, Qian = 半導體异质结构在光催化和光電催化中的研究 / 李乾.Thesis Ph.D. Chinese University of Hong Kong 2015.Includes bibliographical references (leaves 145-162).Abstracts also in Chinese.Title from PDF title page (viewed on 30, December, 2016).Li, Qian = Ban dao ti yi zhi jie gou zai guang cui hua he guang dian cui hua zhong de yan jiu / Li Qian
Liang zi guang li xue de Hamidun liang
No full textCheung, Hoi Kit = 量子光力學的哈密頓量 / 張凱傑.Thesis Ph.D. Chinese University of Hong Kong 2014.Includes bibliographical references (leaves 102-109).Abstracts also in Chinese.Title from PDF title page (viewed on 07, November, 2016).Cheung, Hoi Kit = Liang zi guang li xue de Hamidun liang / Zhang Kaijie
Dan guang zi qiang ou he ling yu zhong de qiang guang li xue
No full textXu, Gaofeng = 單光子強耦合領域中的腔光力學 / 徐高峰.Thesis (M.Phil.)--Chinese University of Hong Kong, 2013.Includes bibliographical references (leaves 78-84).Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web.Abstracts also in Chinese.Xu, Gaofeng = Dan guang zi qiang ou he ling yu zhong de qiang guang li xue / Xu Gaofeng
Aidingdun-Boen-Yingfeierde zhong li li lun he guang yi xiang dui lun xia de zhi mi xing
No full textSham, Yu Hin = 愛丁頓－玻恩－英費爾德重力理論和廣義相對論下的致密星 / 岑宇軒.Thesis Ph.D. Chinese University of Hong Kong 2015.Includes bibliographical references (leaves 137-143).Abstracts also in Chinese.Title from PDF title page (viewed on 15, September, 2016).Sham, Yu Hin = Aidingdun-Boen-Yingfeierde zhong li li lun he guang yi xiang dui lun xia de zhi mi xing / Cen Yuxuan
Tai hu feng guang
No full textTai hu, di chu chang jiang san jiao zhou de jin san jiao di dai, shi zhong guo wu da dan shui hu po zhi yi, zhe li di fu wu rao, ren wen hui cui, zi gu you " yu mi zhi xiang " zhi yu cheng. tai hu, hao cheng " san wan liu qian qing " , " qi shi er feng " . kai fa li shi you jiu, ju jin yi you 2400 yu nian. zhe li hu guang shan se, feng jing xiu li ; ming sheng gu ji lin ci zhi bi ; ceng ci zhong die, feng guang yi ni. ben shu jiu shi ji su zhou, wu xi, hu zhou, jia xing ji shang hai yi jiao zhi feng jing ming sheng jing hua, jiang tai hu di zai de feng guang lü you, ming sheng gu ji, li shi wen hua, zhi wu lei qun hui cui yu yi ce, yi xiang du zh
Zeng qiang ying guang na mi li zi yu jie dian zhi jian ge xi tong de san she neng li
No full textNg, Yan Man = 增強螢光納米粒子於介電質間隔系統的散射能力 / 吳胤汶.Thesis M.Phil. Chinese University of Hong Kong 2015.Includes bibliographical references (leaves 74-81).Abstracts also in Chinese.Title from PDF title page (viewed on 02, November, 2016).Ng, Yan Man = Zeng qiang ying guang na mi li zi yu jie dian zhi jian ge xi tong de san she neng li / Wu Yinwen
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