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Photopolymerization of polydiacetyle...

Carswell, William Edward.

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Photopolymerization of polydiacetylenemethylnitroaniline thin films from 1,2-dichloroethane solution.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Photopolymerization of polydiacetylenemethylnitroaniline thin films from 1,2-dichloroethane solution./
作者:	Carswell, William Edward.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2000,
面頁冊數:	123 p.
附註:	Source: Dissertation Abstracts International, Volume: 61-10, Section: B, page: 5505.
Contained By:	Dissertation Abstracts International61-10B.
標題:	Materials science. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9992369
ISBN:	9780599995239

Photopolymerization of polydiacetylenemethylnitroaniline thin films from 1,2-dichloroethane solution.
Carswell, William Edward.

Photopolymerization of polydiacetylenemethylnitroaniline thin films from 1,2-dichloroethane solution. - Ann Arbor : ProQuest Dissertations & Theses, 2000 - 123 p.

Source: Dissertation Abstracts International, Volume: 61-10, Section: B, page: 5505.

Thesis (Ph.D.)--The University of Alabama in Huntsville, 2000.

This research was undertaken to understand more fully the thin film growth process for polydiacetylenemethylnitroaniline, polymerized from solution in 1,2-dichloroethane by exposure to UV light. The research included verifying the kinetic rate equation for thin film growth, developing and verifying a model for the aggregation of polymer in bulk solution, developing a diffusive/kinetic rate equation for thin film growth under diffusion-controlled conditions, carrying out a diffusion-controlled experiment on the space shuttle with which to compare the model, and performing macroscopic and microscopic morphological analyses of the films.

ISBN: 9780599995239Subjects--Topical Terms:

543314
Materials science.

Photopolymerization of polydiacetylenemethylnitroaniline thin films from 1,2-dichloroethane solution.
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245 1 0 $a Photopolymerization of polydiacetylenemethylnitroaniline thin films from 1,2-dichloroethane solution.
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300 $a 123 p.
500 $a Source: Dissertation Abstracts International, Volume: 61-10, Section: B, page: 5505.
500 $a Adviser: Robert J. Naumann.
502 $a Thesis (Ph.D.)--The University of Alabama in Huntsville, 2000.
520 $a This research was undertaken to understand more fully the thin film growth process for polydiacetylenemethylnitroaniline, polymerized from solution in 1,2-dichloroethane by exposure to UV light. The research included verifying the kinetic rate equation for thin film growth, developing and verifying a model for the aggregation of polymer in bulk solution, developing a diffusive/kinetic rate equation for thin film growth under diffusion-controlled conditions, carrying out a diffusion-controlled experiment on the space shuttle with which to compare the model, and performing macroscopic and microscopic morphological analyses of the films.
520 $a The kinetic growth rate equation for thin film growth was verified to depend on UV intensity to the 1.02 +/- 0.02 power, and on monomer concentration to the 0.499 +/- 0.007 power. The kinetic rate constant was determined to be (6.54 +/- 0.19)·10-10 (mW/cm 2·(mg/ml)0.5)-1·cm/sec.
520 $a Dynamic light scattering demonstrated a very rapid initial aggregation rate, dependent on time to the one-third power, in good agreement with the model, followed by a much slower aggregation rate. The aggregate particles reached 100--200nm within one-half to one hour, then grew only a few tens of nanometers during the following weeks and months.
520 $a The diffusion-controlled experiment on the space shuttle produced films 0.1mum thick. The ground control experiment grew films 0.15mum thick. The diffusive/kinetic growth model predicted films 0.149mum thick when grown under diffusion-controlled conditions. The discrepancy between the model predictions and the space shuttle experiment results are attributed to significant interfacial monomer depletion due to aggregation of the polymer in solution adjacent to the growth interface.
520 $a Angle-resolved x-ray photoelectron spectroscopy was used to show that during the early stages of growth the mer units are arranged preferentially with one end toward the quartz substrate. Subsequent growth, however, results in the loss of this preferred orientation. This explains the lack of second order nonlinear optical activity in the films.
520 $a Atomic force microscopy revealed an island morphology for the films. The boundaries between the islands may contribute to optical scattering in the films.
590 $a School code: 0278.
650 4 $a Materials science. $3 543314
650 4 $a Polymer chemistry. $3 3173488
690 $a 0794
690 $a 0495
710 2 $a The University of Alabama in Huntsville. $3 1017884
773 0 $t Dissertation Abstracts International $g 61-10B.
790 $a 0278
791 $a Ph.D.
792 $a 2000
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9992369