東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Anisotropically patterned photopolym...

Duran, Hatice.

Linked to FindBook

Google Book

Amazon

博客來

Anisotropically patterned photopolymerization-induced phase separation of self-assembled nano-composites with liquid crystals and multifunctional monomers.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Anisotropically patterned photopolymerization-induced phase separation of self-assembled nano-composites with liquid crystals and multifunctional monomers./
Author:	Duran, Hatice.
Description:	198 p.
Notes:	Source: Dissertation Abstracts International, Volume: 65-02, Section: B, page: 0768.
Contained By:	Dissertation Abstracts International65-02B.
Subject:	Chemistry, Polymer. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3123379
ISBN:	049670690X

Anisotropically patterned photopolymerization-induced phase separation of self-assembled nano-composites with liquid crystals and multifunctional monomers.
Duran, Hatice.

Anisotropically patterned photopolymerization-induced phase separation of self-assembled nano-composites with liquid crystals and multifunctional monomers. - 198 p.

Source: Dissertation Abstracts International, Volume: 65-02, Section: B, page: 0768.

Thesis (Ph.D.)--The University of Akron, 2004.

Thermodynamic phase diagrams of unpolymerized and photopolymerized (UV/laser) nematic liquid crystal (LC), multifunctional acrylate(s), and/or multi-walled carbon nanotube (MWNT) mixtures were established by using polarized optical microscope (POM) and differential scanning calorimetry (DSC). The study revealed an important observation that there existed a chimney type phase diagram between MWNT/LC mixtures. It has been shown for the first time that there is an appreciable alignment induced interaction between multi-walled nanotube and liquid crystal molecules. To highlight the importance of choice of initial conditions for photopolymerization reactions, phase diagrams were used as guidance for the dynamics of phase separation studies. The domain morphology resulting from phase separation induced by temperature quench and/or photopolymerization at various conditions (intensity, temperature) was investigated in-situ by using POM and P-DSC.

ISBN: 049670690XSubjects--Topical Terms:

1018428
Chemistry, Polymer.

Anisotropically patterned photopolymerization-induced phase separation of self-assembled nano-composites with liquid crystals and multifunctional monomers.
LDR:03409nmm 2200289 4500 001 1850860
005 20051216103849.5
008 130614s2004 eng d
020 $a 049670690X
035 $a (UnM)AAI3123379
035 $a AAI3123379
040 $a UnM $c UnM
100 1 $a Duran, Hatice. $3 1938768
245 1 0 $a Anisotropically patterned photopolymerization-induced phase separation of self-assembled nano-composites with liquid crystals and multifunctional monomers.
300 $a 198 p.
500 $a Source: Dissertation Abstracts International, Volume: 65-02, Section: B, page: 0768.
500 $a Adviser: Thein Kyu.
502 $a Thesis (Ph.D.)--The University of Akron, 2004.
520 $a Thermodynamic phase diagrams of unpolymerized and photopolymerized (UV/laser) nematic liquid crystal (LC), multifunctional acrylate(s), and/or multi-walled carbon nanotube (MWNT) mixtures were established by using polarized optical microscope (POM) and differential scanning calorimetry (DSC). The study revealed an important observation that there existed a chimney type phase diagram between MWNT/LC mixtures. It has been shown for the first time that there is an appreciable alignment induced interaction between multi-walled nanotube and liquid crystal molecules. To highlight the importance of choice of initial conditions for photopolymerization reactions, phase diagrams were used as guidance for the dynamics of phase separation studies. The domain morphology resulting from phase separation induced by temperature quench and/or photopolymerization at various conditions (intensity, temperature) was investigated in-situ by using POM and P-DSC.
520 $a The photopolymerization behavior and reaction kinetics for a series of multifunctional acrylate monomer(s), LC and MWNT mixtures were experimentally characterized with particular attention paid on the determination of the kinetic rate constants of propagation and termination steps of photopolymerization. The parameters of the photopolymerization modeling can be extracted from the measurements of the kinetic data. Real time-IR instrument was modified in order to avoid the strong inhibition effect of atmospheric oxygen on the photopolymerization and to create a controlled temperature environment. A systematic study of the effect of various parameters (functionality, temperature, intensity, LC and MWNT) on the kinetics was also performed for these systems. In general, reaction diffusion was found to dominate the kinetics from the very beginning of the multifunctional acrylate photopolyemrization.
520 $a Self-assembly and orientation of carbon nanotubes through optical interference subjected to pattern-induced photopolymerization was applied into various multifunctional acrylate/LC/MWNT mixtures by using two-wave and four-wave interference technique. The final part of this study dealt with electro-optical properties of pattern-induced phase separated films. Detailed scanning electron microscope images revealed that MWNT bundles align perpendicular to film surface. Diffraction efficiency measurements showed little or no indication of switching response with the addition of MWNT.
590 $a School code: 0003.
650 4 $a Chemistry, Polymer. $3 1018428
690 $a 0495
710 2 0 $a The University of Akron. $3 1018399
773 0 $t Dissertation Abstracts International $g 65-02B.
790 1 0 $a Kyu, Thein, $e advisor
790 $a 0003
791 $a Ph.D.
792 $a 2004
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3123379