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te of polymerization and allow for the separation and purification of the product styrene.
Improving conversion and so reducing the amount of ethylbenzene that must be separated is the chief impetus for researching alternative routes to styrene. Other than the POSM process, none of these routes like
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emulsions. Emulsion polymerization depend on the kind of monomer, quality of water, kind of initiator, amount of surfactant, temperature and other reaction parameters.
In the first, we had to make the solution definitely. Put the water, initiator, monomer(styrene) and also surfactant into the flask.
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styrene(PS)
(2) Toluene
(3) 용액 중합(Solution Polymerization)
(4) Polystyrene(PS) 중합 메커니즘 (유리라디칼 비닐 중합)
(5) 라디칼중합의 반응속도
3. 실험 기구 및 시약
4. 실험 과정
5. 실험 결과
(1) IR 그래프
(2) DSC 그래프
(3) TGA
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Polymerization
2. 3. 1 Initiation
2. 3. 2 Propagation
2. 3. 3 Termination
2. 3. 4 Chain transfer reaction
2. 4 AIBN(Azobisisobutyronitrile)
2. 5 용액중합(solution polymerization)
2. 6 GPC (Gel Permeation Chromatography)
2. 6. 1
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실험목적
2. 실험원리
(1) Polystyrene(PS)
(2) Toluene
(3) 용액 중합(Solution Polymerization)
(4) Polystyrene(PS) 중합 메커니즘 (유리라디칼 비닐 중합)
(5) 라디칼중합의 반응속도
3. 실험 기구 및 시약
4. 실험 과정
5. 참고문헌
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of 10-2/sec
Fig. 15. Strain - Stress curve at strain rate of 10-3/sec
Fig. 16. Strain - Stress curve at strain rate of 10-4/sec
(a)
(b)
(c)
(d)
(e)
(f)
Fig. 17. Comparison of ultimate tensile strength;
(a) Sn-40Bi-0.1Mn, (b) Sn-40Bi-0.2Mn,
(c) Sn-40Bi-0.1In, (d) Sn-40Bi-0.2In,
(e) Sn-40Bi-0.25Ag,
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솔루션 개발, 디지털타임즈, 2004-12-20, 안길섭
[23] [기획-제2단계 디지털혁명] BcN⑦/HFC 네트워크 새기술 NGNA, 최경섭기자, 디지털타임스, 2005-10-04
[24] IP-TVㆍ이동휴대방송 `핫 이슈‘, 디지털타임스, 2005-09-12
[25] [전망대] IP TV 서비스, 디지털타임
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s ways to raise awareness about the DAS among Internet users and shows how it can be accepted among them, by using the Extended Technology Acceptance Model (ETAM). Considering the fact that the DAS is an emerging solution, surveys and analysis of the technique are divided into two stages: Research 1
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of a Carbon Nanotube-
Lyotropic Liquid Crystal Composite, Ben-Gurion University of the Negev(20
05)
3. 한국고분자학회, 분산성이 향상된 고분자형 탄소나노튜브의 개발, (2002)
4. DPI solution techlaboratory, Develop
ment of Carbon Nanotube Transparent Electrode for Display, 13-26(2005)
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of the Calculus of voting," The American Political science, Vol 65 : 25-42.
Fiorina, Moris P. 1981. Retrospective Voting in American National Elections. New Haven : Yale University Press.
Kanazawa, Satoshi. 1999. "A Possible Solution to the Paradox of Voter Turnout," Journal of Politics. Vol 60 : 97
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using rectifier / inverter and the solution as well.
Answer)
1) Rectifier
A full-wave rectifier converts the whole of the input waveform to one of constant polarity (positive or negative) at its output. Full-wave rectification converts both polarities of the input waveform to DC (direct current), an
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