To see the other types of publications on this topic, follow the link: Benzoxazole – Synthesis.

Dissertations / Theses on the topic 'Benzoxazole – Synthesis'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 45 dissertations / theses for your research on the topic 'Benzoxazole – Synthesis.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Kleinhans, Dewald Johannes. "Studies in the synthesis of benzoxazole compounds." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/97900.

Full text
Abstract:
Thesis (PhD)--Stellenbosch University, 2015.<br>ENGLISH ABSTRACT: Benzoxazoles are an important class of π-electron-excessive, benzene-fused heterocyclic compounds found in natural products and display a wide range of pharmacological applications. It is therefore a widely used starting scaffold for drug and agrochemical discovery programs. Other applications include: chiral auxiliaries in asymmetric reactions, chiral receptors for the resolution of racemic mixtures, fluorescent whitening dyes, various photochromic materials and as ligands for a wide range of catalytic reactions. Due to ou
APA, Harvard, Vancouver, ISO, and other styles
2

Park, Joonwon. "Synthesis and molecular control of star-like poly-2,4-benzoxazole." Thesis, Georgia Institute of Technology, 1992. http://hdl.handle.net/1853/8656.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Avant, Lavern Marshall. "Synthesis and characterization of a cross-digitated poly (2,5-Benzoxazole) (ABPBO)." Thesis, Georgia Institute of Technology, 1995. http://hdl.handle.net/1853/8464.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Bi, Xiaoman bi. "Synthesis and Characterization of Novel Fluorescent Sensors Based on Terpyridine, Benzoxazole and Benzothiazole Chromophores." University of Akron / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1512743963248758.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Njaria, Paul Magutu. "Antimycobacterial 2-aminoquinazolinones and benzoxazole-based oximes: synthesis, biological evaluation, physicochemical profiling and supramolecular derivatization." Doctoral thesis, University of Cape Town, 2017. http://hdl.handle.net/11427/26954.

Full text
Abstract:
Tuberculosis (TB) is a life-threatening infectious disease caused by Mycobacterium tuberculosis (Mtb). Globally, TB is a major public health burden with an estimated 10.4 million new cases and 1.8 million deaths reported in 2015. Although TB is curable, the treatment options currently available are beset by numerous shortcomings such as lengthy and complex treatment regimens, drug-drug interactions, drug toxicities, as well as emergence of widespread multi-drug resistance. Therefore, there is an urgent and compelling need to develop new, more effective, safer drugs with novel mechanisms of act
APA, Harvard, Vancouver, ISO, and other styles
6

de, Souza Lucio R. "SYNTHESIS AND APPLICATION OFHIGH PERFORMANCE BENZOXAZINE-EPOXY COPOLYMERS." Case Western Reserve University School of Graduate Studies / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=case1618528984888642.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Hutson, Leslie K. "Synthesis of Benzoxazoles Containing Allyl Crosslinking Sites via Claisen Rearrangements." Wright State University / OhioLINK, 1999. http://rave.ohiolink.edu/etdc/view?acc_num=wright974400715.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Demachy, Charles. "Synthèse électrochimique de nouveaux dérivés de la benzoxazine." Paris 5, 1995. http://www.theses.fr/1995PA05P068.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Pham, Hong-Ngoc. "Synthesis of enantiopure 3,4-dihydro-2H-1,4-benzoxazine analogues for potential biological applications." Electronic Thesis or Diss., Université de Lorraine, 2020. http://www.theses.fr/2020LORR0186.

Full text
Abstract:
Ce travail décrit la synthèse et l'analyse conformationnelle de pseudodipeptides et pseudotripeptides à base d’un motif 1,4-benzoxazinique énantiopur. Les énantiomères du 2,3-dibromopropionate d'éthyle et du 3,4-dihydro-2H-1,4-benzoxazine-2-carboxylate d'éthyle sont obtenus par deux stratégies (i) synthèse énantiosélective et (ii) énantioséparation des racemiques par HPLC préparative à l’échelle du multigramme. En raison de processus de racémisation au cours des synthèses énantiosélectives, l'énantioséparation des racemiques par HPLC préparative est realisée avec succès pour accéder aux différ
APA, Harvard, Vancouver, ISO, and other styles
10

Liu, Jingping. "Synthesis, characterization, reaction mechanism and kinetics of 3,4-dihydro-2H-1,3-benzoxazine and its polymer." Case Western Reserve University School of Graduate Studies / OhioLINK, 1995. http://rave.ohiolink.edu/etdc/view?acc_num=case1062775094.

Full text
APA, Harvard, Vancouver, ISO, and other styles
11

Schulz, Knut. "Beitrag zur Synthese und Chemie von 2H-Benzo(1,4)chalkogenazinen Darstellung neuer Lactamstrukturen, Tetrazole und Aminoketone." Berlin mbv, 2008. http://d-nb.info/992998670/04.

Full text
APA, Harvard, Vancouver, ISO, and other styles
12

Liu, Jiacheng. "Fabrication, Synthesis, and Characterization of Flame Retardant and Thermally Stable Materials: Flame Retardant Coating for Polyurethane Foam and Fused-ring Benzo-/naphthoxazines." Case Western Reserve University School of Graduate Studies / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=case1491229961956675.

Full text
APA, Harvard, Vancouver, ISO, and other styles
13

Mitchell, Amy L. "Materials by design : development of poly(bis-benzoxazine)s with improved toughness properties : synthesis, analysis and molecular modelling." Thesis, University of Surrey, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.435279.

Full text
APA, Harvard, Vancouver, ISO, and other styles
14

Mayer, Stanislas. "Derives de la 3,4-dihydro-2h-1,4-benzoxazine a activite antagoniste aux recepteurs gp iib/iiia synthese de 2,3,4,x-tetrahydro1,4oxazinoyindoles." Orléans, 2000. http://www.theses.fr/2000ORLE2015.

Full text
Abstract:
Les derives de la 3,4-dihydro-2h-1,4benzoxazine substitues en 2 par un groupement ester sont peu etudies ; pourtant, ils peuvent constituer une ossature de choix dans l'elaboration de nouveaux composes a activite pharmacologique, par exemple, comme antagoniste aux glycoproteines gp iib/iiia. Dans le but de fonctionnaliser le noyau aromatique des 3,4-dihydro-1,4-benzoxazines, nous avons etudie leur formylation. Les composes 4-acethyle, sous les conditions de rieche, generent majoritairement des derives formyles sur le sommet 6, alors que les composes 4-benzyles conduisent exclusivement a des fo
APA, Harvard, Vancouver, ISO, and other styles
15

Luo, Guo-Wei, and 羅國瑋. "Synthesis and Properties of Poly(benzoxazole-imide)Copolymer/Clay Nanocomposites." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/76168487506357286813.

Full text
Abstract:
碩士<br>國立成功大學<br>材料科學及工程學系碩博士班<br>92<br>Poly(benzoxazole-imide) (PBO-PI) copolymer/clay nanocomposites have been prepared from a PBO-PI precursor-poly(hydroxyamide-amic acid) (PHA-PAA) and two different organoclays. The PBO-PI precursor was made by a polycondensation reaction between 2,2-bis(3-amino-4-hydroxyphenol) hexafluoropropane (BisAPAF), 4,4-oxydiphthalic anhydride (ODPA) and isophthaloyl dichloride (IC). The organoclays were formed by a cation exchange reaction between a Na+-montmorillonite clay and an ammonium salt of dodecylamine (DOA) or 4-phenoxyaniline (POA). The glass transition t
APA, Harvard, Vancouver, ISO, and other styles
16

Chang, Ying-Ching, and 張孆璟. "Synthesis of Anticacer Bis (benzimidazoles) Library and Benzimidazolyl benzoxazole Related to UK-1." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/8s3bfm.

Full text
APA, Harvard, Vancouver, ISO, and other styles
17

Chen, Tai-an, and 陳泰安. "Synthesis and Characterization of New Polyimides Containing Pendent Benzimidazoles Groups and Polybenzimidazoles Containing Pendent Benzoxazole Groups." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/93346838677936173720.

Full text
Abstract:
碩士<br>國立臺灣科技大學<br>化學工程系<br>102<br>Part 1 A series of new polyimides (PIs) with pendant benzimidazole had been synthesized. They had inherent viscosities in the range of 0.96~1.20 dLg-1, and they could form tough and flexible films. The PIs exhibited high thermal stability with 10% decomposition temperature more than 500℃ in nitrogen, and their and soft temperature around 300℃. These films exhibited good mechanical properties with tensile stress exceeded 132 MPa.However,the mechanical properties of phosphoric acid doped PI significantly decreased. The mechanical properties of crosslinked polyim
APA, Harvard, Vancouver, ISO, and other styles
18

Chen, Szu-Yuan, and 陳思源. "Synthesis and Characterization of New Polybenzimidazoles Containing Pendent Benzoxazole Groups for Proton Exchange Membrane Fuel Cell at Intermediate Temperature." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/19376040315169121072.

Full text
Abstract:
碩士<br>國立臺灣科技大學<br>化學工程系<br>101<br>A series of new polybenzimidazoles (PBIs) with pendant heterocyclic ring have been synthesized. The resulting polymers showed good solubility in aprotic solvents. They had inherent viscosities in the range of 0.92~1.9 dLg-1, and they could form tough and flexible films. They exhibited high thermal stability with initial decomposition temperature ranging from 653 to 705 in nitrogen, and their glass transition temperature around 300℃. These films exhibited good mechanical properties with tensile stress exceeded 94.5 MPa. Phosphoric acid (PA) doped PBI was swolle
APA, Harvard, Vancouver, ISO, and other styles
19

McKee, Mireya Loreley 1978. "Synthesis and biological evaluation of 2-(2'-hydroxyphenyl) benzoxazole analogs of UK-1 and G-quadruplex selectivity of perylene diimide compounds: /." Thesis, 2007. http://hdl.handle.net/2152/3634.

Full text
Abstract:
A great number of pharmaceutical drugs target nucleic acids. However, drug-DNA interactions can be region non-specific and lead to undesired side effects. Understanding the mechanisms that regulate drug-DNA binding can help in the design of potent and selective therapeutic agents with fewer deleterious side effects. The present investigation explores the metal-mediated DNA binding of a group of 2-(2-hydroxyphenyl)benzoxazole (HPB) ligands and the aggregation dependant G-quadruplex selectivity of a series of perylene tetracarboxylic acid diimides (PTCDI) compounds. HPB ligands are simplified an
APA, Harvard, Vancouver, ISO, and other styles
20

Chou, Yu Wei, and 周裕偉. "Synthesis and properties of dicyclopentadiene-basedcyanate ester/benzoxazine and phosphinated cyanateester/benzoxazine copolymers." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/92400815954383040094.

Full text
Abstract:
碩士<br>國立中興大學<br>化學工程學系所<br>103<br>Dicyclepentadiene-phenol (DP) has rigid aliphatic structure, commonly used in enhancing thermal property and dielectric property for materials. In the study, DP was modified into cyanate ester, DPCY, and blended with bifunctional benzoxazine, 4,4’-diaminodiphenyl ether-based benzoxazine(ODABz). The two resins co-reacted when being cured. The dielectric constants were decreased by adding DPCY in to the thermosets. The resulting materials achieved great thermal properties, thermal stability, and dielectric properties. The hydrophobicity of the materials was also
APA, Harvard, Vancouver, ISO, and other styles
21

Chien, Chun-Kai, and 簡君愷. "Synthesis and characterization of chalcone-containing benzoxazine." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/76181071001805425180.

Full text
Abstract:
碩士<br>國立中興大學<br>化學工程學系所<br>103<br>The photosensitive chalcone-containing benzoxazine (2) was synthesized successfully from chalcone-containing bisphenol, aniline and paraformaldehyde by one-pot procedure. The [2+2] cycloaddition of the chalcone moiety after UV irradiation was monitored by FTIR and UV-vis spectra. To investigate the effect of photodimerization on thermal and mechanical properties, two steps curing procedure was performed. After the cycloaddition of the chalcone moiety by UV-irradiation, the ring-opening polymerization of benzoxazine was performed by thermal curing. Due to the e
APA, Harvard, Vancouver, ISO, and other styles
22

Chen, Zih-Jyun, and 陳姿君. "Synthesis and characteristic of photo-curable benzoxazine thermoset." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/64751732305461184362.

Full text
Abstract:
碩士<br>國立中興大學<br>化學工程學系所<br>103<br>A novel benzoxazine resin with photosensitive group was synthesized. Based on the photosensitive group, the cross-linking points were increased. It was cured by two procedures. First, the benzoxazine was photo-cured by UV light, followed by the thermo-curing. The structures of monomer (1) and (2), including photosensitive group, were monitored by 1H NMR, 13C NMR and FTIR analysis. The monomer (2) could produce two different kinds of structures after thermo-curing and photo-curing. The monomer (2) has the great difference in mechanical, dimensional stability, a
APA, Harvard, Vancouver, ISO, and other styles
23

蔡相芸. "Synthesis and Characterizations of Benzoxazine Containing Uracil Group." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/73646505656288154528.

Full text
Abstract:
碩士<br>國立交通大學<br>應用化學研究所<br>98<br>Polybenzoxazine is an addition polymerized phenolic resin, having a wide range of interesting features and the capability to overcome several shortcomings of conventional novolac and resole type phenolic resins. In many literatures, we learned that the properties of polybenzoxazines can be tuned by inducing different functional groups into the molecular structure of benzoxazine. In this thesis, a new benzoxazine monomer, uracil based benzoxazine (UBZ), possessing multiple hydrogen bonding interaction sites was successfully prepared. By inducing UBZ to BZ, the s
APA, Harvard, Vancouver, ISO, and other styles
24

Tzeng, Yao-Ting, and 曾耀霆. "Synthesis and Characterization for Different Side Chain Benzoxazine Nanocomposites." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/26086655139870413921.

Full text
Abstract:
碩士<br>國立高雄應用科技大學<br>化學工程與材料工程系<br>98<br>Polybenzoxazines have evinced significant interest as a class of high performance polymer. These novel materials gain attention because of low volumetric shrinkage upon curing, minimal moisture absorption, excellent resistance to chemicals. However, the low crosslinking densities of benzoxazine resins leaded to insufficient in mechanical properties and thermal stability. Therefore, for improve mechanical properties and thermal stability, the molecular design flexibility and added reinforcements would be employ. The goal of this research is focused on
APA, Harvard, Vancouver, ISO, and other styles
25

AlfredMurni and 穆米. "Benzoxazine Containing Triphenylamine Moiety: Synthesis, Characterization and Electrochemical Properties." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/48404065445015707713.

Full text
Abstract:
碩士<br>國立成功大學<br>化學工程學系碩博士班<br>98<br>A novel benzoxazine containing triphenylamine moiety: 3-triphenylamine-3,4-dihydro-2H-1,3-benzoxazine (TPA-Ba) have been synthesized from 2-hydroxybenzaldehyde, 4-aminotriphenylamine and paraformaldehyde. The monomer was characterized by 1H NMR, Elemental Analysis (EA) and Fourier Transform Infrared (FTIR). DSC analysis of the monomer shows two peaks, one is an endothermic peak at 144 °C which corresponds to the melting point of the monomer and an exothermal peak at 240 °C which corresponds to the ring opening process of the benzoxazine ring. The monomer un
APA, Harvard, Vancouver, ISO, and other styles
26

Lin, Yu-Hsiang, and 林鈺翔. "Synthesis and Characterization of Adamantane-Containing Polyimiede and Benzoxazine." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/18281789193094479727.

Full text
Abstract:
碩士<br>國立中興大學<br>化學工程學系所<br>104<br>The research is divided into two parts. The first part is synthesis of adamantine-containing polyimide. (2) will be prepared by the nucleophilic aromatic substitution reaction of (1) and 1-chloro-4-nitrobenzene. Novel diamine (3) with adamantly group will also be prepared by the reduction of (2) in the presence of hydrogen and Pd/C as catalyst. The polyimides were polymerization from (3) and series dianhydride such us PMDA, ODPA, BTDA, BPADA。Novel polyimides exhibit superior thermal properties, thermal stability, low dielectric and low water absorption. In
APA, Harvard, Vancouver, ISO, and other styles
27

Guang-YuChen and 陳光宇. "Acetylene-Containing Benzoxazine: Synthesis, Curing and Thermal Properties of Cured Product." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/55779434588195221638.

Full text
Abstract:
碩士<br>國立成功大學<br>化學工程學系碩博士班<br>100<br>In order to develop a strong toughness also have high thermal stability materials with high toughness benzoxazine groups connected to the acetylene functional groups with high thermal stability. We successfully have used two methods to get the acetylene-cantaining benzoxazine. In one way we use solvent less method, but only get the yield 27 %, and the other way not only improve the yield to 60 %, but also identify inter-medium very clearly by NMR, IR, and EA. Then we have some research on acetylene-cantaining polybenzoxazine curing condition. In order to fi
APA, Harvard, Vancouver, ISO, and other styles
28

Tian, Yu-Wei, and 田諭瑋. "Synthesis of Fluorene-based Benzoxazine and Phosphinated Multifunctional Epoxy Curing Agents." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/yn58d4.

Full text
Abstract:
碩士<br>國立中興大學<br>化學工程學系所<br>99<br>Part I: We successfully synthesized fluorene-containing benzoxazine compound (2) by a facile, widely useful three-step method. Compound (2)’ was synthesized by a co-solvent method. Their chemical structures were confirmed by FT-IR and 1NMR analysis. In the PL analysis, the compound (2) exhibits a blue emission at about 395nm as well as emission band between 350nm〜450nm. The curing behaviors of the precursor were monitored by differential scanning calorimetor(DSC) and its crosslink polymer has a high refractive index. The compound (2) served as curing agents for
APA, Harvard, Vancouver, ISO, and other styles
29

Xiong, Tsai Sheng, and 蔡勝雄. "Syntheses and Properties of Novel Epoxy Curing Agents and Benzoxazine." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/63706784670943641280.

Full text
Abstract:
碩士<br>國立中興大學<br>化學工程學系<br>93<br>A novel phosphorus-containing tri-functional novolac (dopotriol) was synthesized from the addition reaction of 9,10-dihydro-9-oxa-10-phosphaphenan threne 10-oxide (dopo) and rosolic acid. The structure of dopotriol was confirmed by NMR spectrum and elemental analyses. The dopotriol was blended with phenol novolac (PN) in the ratio of 10/0, 8/2, 6/4, 4/6, 2/8 and 0/10 to serve as curing agents for diglycidyl ether of bisphenol A (dgeba). Thermal properties such as Tg, thermal decomposition temperature, flame retardancy, moisture absorption and dielectric properti
APA, Harvard, Vancouver, ISO, and other styles
30

Chung, Yun-Cheng, and 鍾昀澄. "Novel benzoxazine-based diols as chain extender for polyurethanes: synthesis and characterization." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/6kmmm7.

Full text
Abstract:
碩士<br>國立臺灣大學<br>高分子科學與工程學研究所<br>107<br>A series of poly(benzoxazine-co-urethane)s with novel benzoxazine diols as chain extenders were successfully developed in this work. These diol chain extenders were obtained by differents bisphenol (Bisphenol A, Bisphenol F, CPDP) compounds refluxed with 6-amino-1-hexanol and paraformaldehyde. The soft segments of PU were chosed form polytetramethyleneetherglycol (PTMEG), polycaprolactone (PCL), polycarbonate diol (PCPO) and the diisocyanate of the PU was 4,4-methylenediphenyl diisocyanate (MDI). poly(benzoxazine-co-urethane)s were synthesized by a two-st
APA, Harvard, Vancouver, ISO, and other styles
31

Chen, Guan-Ming, and 陳冠明. "Study on Epoxy-Benzoxazine group for Maleimide Resins,Synthesis,properties and structure." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/54937697860717446440.

Full text
Abstract:
碩士<br>國立高雄應用科技大學<br>化學工程系碩士班<br>95<br>In this study, two kinds of Epoxy-Maleimide Monomer (EMM) and Benzoxazine-Maleimide monomer (BMM) were synthesized from N-(4-hydroxyphenyl)maleimide (HPM ). The monomer EMM or BMM was cured with DOPO at various content, and their curing behaviors investigated by differential scanning calorimetry (DSC). The properties of the resins were studied by Dynamic viscoelastic analysis (DMA), Thermogravimetric analyzer (TGA), Dielectric analyzer (DEA) and UL-94V test. The kinetic parameters were studied by dynamic DSC. According to the results, the most main factors
APA, Harvard, Vancouver, ISO, and other styles
32

Wang, Meng-Wei, and 汪孟緯. "Benzoxazine: Synthetic Modification, Mechanism, and Microstructure of Its Resulting Thermoset." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/32363084905175506322.

Full text
Abstract:
博士<br>國立臺灣大學<br>高分子科學與工程學研究所<br>104<br>A main chain-type polybenzoxazine precursor, P(BF-bapp)-1, with high molecular weight (MW) was prepared through a strategy of A-A and B-B polycondensation, avoiding by-reaction that occurred in Mannich condensation. To discuss the effect of the MW of benzoxazine on the properties and microstructure of the resulting thermoset, anthother three structurally similar benzoxazines with difference MW were syntheized in this work. To discuss the mechanism of ring-opening polymerization (ROP) of benzoxazine, three polybenzoxazine precursors were prepared. Among t
APA, Harvard, Vancouver, ISO, and other styles
33

Lin, Laing-Kai, and 林莨凱. "Synthesis, characterization and properties of silicon- or phosphorous- containing benzoxazine monomers and polymers." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/20700451156473593654.

Full text
Abstract:
碩士<br>中原大學<br>化學工程研究所<br>100<br>In this study, the development of novel methods to synthesize monomers with benzoxazine functional groups is investigeated to overcome the disadvantage of benzoxazine by designing the molecular structure, physical, and chemical properties. The first part is to use silicon-containing poly (dimethylsiloxane - co - methylhydrosiloxane), trimethylsilyl terminated (Si-H (13000)), and phosphorus diethylphosphite (DEP), 2 - [(phenylimino) methyl] phenol (PIMP), and paraformaldhye for synthesis of monomers containing silicon or phosphorus. The samples were charaterized
APA, Harvard, Vancouver, ISO, and other styles
34

Chen, Nan-Shiun, and 陳南勳. "Synthesis and Characterization of Benzoxazine-Containing Sulfonated Polyelectrolytes for Direct Methonal Fuel Cell." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/86402537351847952475.

Full text
Abstract:
碩士<br>中原大學<br>化學工程研究所<br>100<br>Abstract The purpose of this study is to develop a polymer material containing sulfonic acid functional groups, which are further used as polyelectrolyte membrane in direct methanol fuel cells. A novel new monomer BAPBDS-BMI containing sulfonic acid and bismaleimide groups was synthesized from 4,4’-bis(4-aminophenoxy)biphenyl (BAPB) and characterized. This new monomer was further reacted with benzoxazine and furan containing BPA-FBz monomer via Diels-Alder reaction to prepare a linear polymer BA-DA. This newly synthesized polymer containing benzoxazine and sulfo
APA, Harvard, Vancouver, ISO, and other styles
35

Yu, Juin-Meng, and 游俊盟. "Synthesis and properties of benzoxazine with maleimide functional group, polybenzoxazine resin curing study." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/tc4h8q.

Full text
Abstract:
碩士<br>中原大學<br>化學工程研究所<br>93<br>Abstract In this study, a maleimide-containing benzoxazine monomer, 3-phenyl-3-4-dihydro-2H-6-(N-maleimido)-1,3-benzoxazine (HPM-Ba), was prepared with using N-(4-hydroxyphenyl)maleimide, formaldehyde, and aniline as starting materials. The chemical structure of HPM-Ba was confirmed by FT-IR, 1H-NMR, and Elemental Analysis measurements. A two-stage thermal polymerization was observed with HPM-Ba under heat, in which the first stage was the reaction of maleimide groups and the second one was the ring-opening reaction of benzoxazine groups. The reaction scheme w
APA, Harvard, Vancouver, ISO, and other styles
36

Wang, Po-Jen, and 王柏仁. "Synthesis and properties of cyanate ester and benzoxazine thermoset with improved electrical conductivity." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/5nr35y.

Full text
Abstract:
碩士<br>國立中興大學<br>化學工程學系所<br>100<br>We have successfully prepared maleimide-functionalized CNTs (BMI-CNT) via Diels-Alder reaction of MWCNTs with 1,1&apos;&apos;-(methylenedi-p-phenylene)bismaleimide (DDM-BMI) . Among the solvent we have tried, DMAc is the best solvents for the modification, as supported by thermal gravitational analysis of organic content. IR spectrum confirms the C=O, and C-N bonds of BMI-CNT. The modification was also supported by intensity change of ID/IG in Raman spectrum, and the well dispersion of BMI-CNT in DMSO, DMF, and ethanol. The maleimide linkage act as a bonding c
APA, Harvard, Vancouver, ISO, and other styles
37

Dai, Kang-Hong, and 戴嵻宏. "synthesis of phosphorus-containing multifunctional benzoxazine and thermal properties of the resulting thermosets." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/r6p9xm.

Full text
Abstract:
碩士<br>國立中興大學<br>化學工程學系所<br>101<br>PART I We have successfully synthesized phosphorus-containing multifunctional benzoxazine, P-BPA-3b-BZ and P-BPA-5b-BZ by one-pot approach using toluene/ethanol (2/1) as solvent. Ring-opening polymerization types of curing systems were tracked by FTIR. The mechanical property, thermal stability, electrical property and flame retardancy of thermoset systems cured by various BZs with epoxy resins (DGEBA or CNE) were analyzed DMA, TGA, impedance analyzer and UL 94 flame rating. PART II A novel difunctional phenolic diastereomer, P-D2HB, from D2HB and DOPO, was
APA, Harvard, Vancouver, ISO, and other styles
38

Chou, Ching-I., and 周進義. "Design and Synthesis of Novel Benzoxazine Monomers and Characterization of Their High Performance Thermosets." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/96873811888451765420.

Full text
Abstract:
博士<br>中原大學<br>化學工程研究所<br>96<br>Abstract In this study, five novel benzoxazine monomers (3-phenyl-3,4-di- hydro-2H-6-(N-maleimido)-1,3-benzoxazine, HPM-ABz; 3-furfuryl-3,4- dihydro-2H-1,3-benzoxazine, P-FBz; bis(3-furfuryl-3,4-dihydro-2H-1,3- benzoxazine)isopropane, BPA-FBz; 6-fluoro-3-furfuryl-3, 4-dihydro-2H- 1,3-benzoxazine, 4-FP-FBz; 1,3-bis(3-aminopropyl)tetramethyl-disiloxane- benzoxazine, P-BATMSBz ) were synthesized using functional primary amines (N-(4-hydroxyphenyl)maleimide; furfurylamine; 1,3-bis(3-amino- propyl)tetramethyldisiloxane, BATMS) as raw materials. The chemical structures
APA, Harvard, Vancouver, ISO, and other styles
39

Chang, Che-Yuan, and 張哲淵. "Synthesis and properties of benzoxazine containing fluorene and furan groups and their corresponding polymers." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/54697673768839857309.

Full text
Abstract:
碩士<br>中原大學<br>化學工程研究所<br>99<br>In this study,a novel benzoxazine monomer FDP-FBz was synthesized using furfurylamine, formaldehyde and 4,4’-(9-Fluorenylidene) diphenol(FDP) as reactants. The chemical structure of 9,9-Bis(3- furfuryl-3,4-dihydro-2H-1,3- benzoxazinyl)fluorine (FDP-FBz) was characterized with FT-IR, 1H-NMR amd elemental analysis, proving that we synthesized high-purity FDP-FBz monomer successfully.   First part, PFBz possessing benzoxazine group in the mainchain was prepared through the Diels-Alder reaction using FDP-FBz and 1,1’-(Methylenedi-4,1-phenylene) bismaleimide (DDM-BMI)
APA, Harvard, Vancouver, ISO, and other styles
40

Chu, Wei-cheng, and 朱偉誠. "Synthesis of mesoporous benzoxazine by combination of amphiphilic block copolymers and reaction-induced microphase separation." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/55928656244180294214.

Full text
Abstract:
碩士<br>國立中山大學<br>材料與光電科學學系研究所<br>100<br>A series of immiscible crystalline-crystalline diblock copolymers, poly(ethylene oxide)-b-(ε-caprolactone) (PEO-b-PCL), were blended with (3-phenyl-3,4-dihydro-2H-1,3-benzoxazin-6-yl) methanol (Pa-OH). FT-IR analyses provide that the ether group of PEO is a stronger hydrogen bond acceptor than the carbonyl group of PCL with the hydroxyl group of Pa-OH. Pa-OH after curing results in the excluded and confined PCL phase based on differential scanning calorimeter (DSC) analyses. In addition, the mesoporous structure was proved with the increasing the ratio of
APA, Harvard, Vancouver, ISO, and other styles
41

Wang, Meng-Wei, and 汪孟緯. "Steric hindrance-control synthesis of primary amine-containing benzoxazines, and properties of the resulting poly(benzoxazine imide) thermosets." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/04074774186164210367.

Full text
APA, Harvard, Vancouver, ISO, and other styles
42

Lee, Kuan-Wei, and 李冠緯. "Synthesis and characterization of low-dielectric crosslinkable phosphinated polyimides and oligo(phenylene oxide)s-containing benzoxazine for high-frequency communication." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/26209866886394738785.

Full text
Abstract:
碩士<br>國立中興大學<br>化學工程學系所<br>105<br>Part I. Synthesis and characterization of low-dielectric crosslinkable phosphinated polyimides for high-frequency communication. In the first part of this work, a phosphinated hydroxy diamine was prepared via a one-pot procedure. Based on the phosphinated hydroxy diamine, a series of polyimides with hydroxy linkage in the repeat unit was prepared by thermal imidization. The esterification of hydroxy unit with methacrylic anhydride and cinnamoyl chloride were performed to generate active ester-containing polyimides with methacrylic moiety ( P3-MMA and P4-MMA )
APA, Harvard, Vancouver, ISO, and other styles
43

賴亭云. "Synthesis and Properties of Thermal Curable Polytriazole with Benzoxazine Moieties in the Main Chain or as Side Chain via Click Reaction." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/41632072671055976607.

Full text
Abstract:
碩士<br>國立交通大學<br>應用化學系碩博士班<br>99<br>A series of linear polytriazole-based (PTA) polymers containing thermally curable benzoxazine unit in the main chain or as side chain was synthesized via click reaction. The structure was confirmed by 1H nuclear magnetic resonance (NMR) and fourier transform infrared (FT-IR) spectroscopy. To better understand the curing kinetics of the main-chain and side-chain type polymers, we performed the differential scanning calorimetry (DSC) measurements to describe the thermodynamics of the curing process by using the Kissinger and Ozawa models to calculate the activa
APA, Harvard, Vancouver, ISO, and other styles
44

Huang, Yao-Jheng, and 黃耀正. "Synthesis and Characterization of Sulfonated Polytriazole Proton Exchange Membrane for Fuel Cells and Thermally Cured Polytriazole Polymers Incorporating Main or Side Chain Benzoxazine Crosslinking Moieties via “Click Reaction”." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/bmhaqg.

Full text
Abstract:
博士<br>國立交通大學<br>應用化學系碩博士班<br>101<br>There are two sections that both of them were using the click chemistry as the tool in this thesis: (i) Synthesize the sulfonated polytriazole proton exchange membrane for fuel cells (ii) Synthesize the thermally cured polytriazole polymers incorporating main or side chain benzoxazine crosslinking moieties (i) Synthesize the sulfonated polytriazole proton exchange membrane for fuel cells Among various types of proton exchange membranes (PEMs) for fuel cells, several nonfluorinated polymeric materials are attracting more attention as alternatives to
APA, Harvard, Vancouver, ISO, and other styles
45

Lamani, Manjunath. "Design And Development Of Synthetic Methods Using Metal-Mediated And Metal Free Redox Reactions : Novel C-H Activations, Reductions And Oxidative Transformations." Thesis, 2012. http://hdl.handle.net/2005/2501.

Full text
Abstract:
The thesis entitled “Design and Development of Synthetic Methods using Metal-mediated and Metal-free Redox Reactions: Novel C-H Activations, Reductions and Oxidative Transformations” is presented in 4 chapters Chapter 1; Iodine catalyzed amination of benzoxazoles: efficient metal free route to 2-aminobenzoxazoles under mild conditions. The Chapter 1 of this thesis describes iodine catalyzed C-H activation of benzoxazole with primary and secondary amines to form oxidative aminated products. Selective C-H oxidation is a frontline area of modern chemical research as it offers the opportunities
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!