DIAMOND
DIAMOND ๋“ฑ๊ธ‰์˜ ํŒ๋งค์ž ์ž๋ฃŒ

์„œ๊ฐ•๋Œฟ’ ํ™”๊ณต์ƒ๋ช…๊ณตํ•™์‹คํ—˜1 A+ < ๊ณ ๋ถ„์ž ํ•ฉ์„ฑ (Polymerization of polymer) > ๋ ˆํฌํŠธ

Pre์™ฟ’ Main ๋ ˆํฌํŠธ๊ฐ€ ํ•ฉ์ณ์ง„ ํ†ตํ•ฉ๋ณธ์ž…๋‹ˆ๋‹ค. ๋ ˆํฌํŠธ ์ด์  1๋“ฑ์œผ๋กœ "A+" ๋ฐ›์•˜์Šต๋‹ˆ๋‹ค.
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์ตœ์ดˆ๋“ฑ๋ก์ผ 2024.01.24 ์ตœ์ข…์ ฟ’์ž‘์ผ 2022.09
25P ๋ฏธ๋้ฉ๋ณด๊ธฐ
์„œ๊ฐ•๋Œฟ’ ํ™”๊ณต์ƒ๋ช…๊ณตํ•™์‹คํ—˜1 A+ &lt; ๊ณ ๋ถ„์ž ํ•ฉ์„ฑ (Polymerization of polymer) &gt; ๋ ˆํฌํŠธ
  • ๋ฏธ๋้ฉ๋ณด๊ธฐ

    ์†Œ๊ฐœ

    Pre์™ฟ’ Main ๋ ˆํฌํŠธ๊ฐ€ ํ•ฉ์ณ์ง„ ํ†ตํ•ฉ๋ณธ์ž…๋‹ˆ๋‹ค.
    ๋ ˆํฌํŠธ ์ด์  1๋“ฑ์œผ๋กœ "A+" ๋ฐ›์•˜์Šต๋‹ˆ๋‹ค.

    ๋ชฉ์ฐจ

    I. <Pre-Report>
    1.์‹คํ—˜ ๋ชฉ์ 
    2.๋ฐฐ๊ฒฝ ์ด๋ก 
    3.References

    II. <Main Report>
    1. ์‹คํ—˜ ๋ฐฉ๋ฒ•
    2. Data & Results
    3. Discussion
    4. Conclusion
    5. References

    ๋ณธ๋ๅฉ๋‚ด์šฉ

    โ… . ์‹คํ—˜ ๋ชฉ์ 
    free radical ์ค‘ํ•ฉ ๋ฐ˜์‘์˜ ๋ฉ”์ปค๋‹ˆ์ฆ˜๊ณผ ๋ฒŒํฌ ์ค‘ํ•ฉ์œผ๋กœ ๊ณ ๋ถ„์ž๋ฅผ ํ•ฉ์„ฑํ•˜๋Š” ๋ฐฉ๋ฒ•์„ ์ตํžŒ๋‹ค. ๊ฐœ ์‹œ์ œ ํ•จ๋Ÿ‰ ๋ณ„ ํ•ฉ์„ฑ๋œ ๊ณ ๋ถ„์ž ์ˆ˜์œจ์„ ๊ณ„์‚ฐํ•œ๋‹ค. GPC, NMR ๋ถ„์„๋ฒ•์„ ์ด์šฉํ•ด ํ•ฉ์„ฑํ•œ ๊ณ ๋ถ„์ž ๋ฌผ์งˆ์˜ PDI๋ฅผ ๊ณ„์‚ฐํ•œ๋‹ค.

    โ…ก. ๋ฐฐ๊ฒฝ ์ด๋ก 
    1. ๊ณ ๋ถ„์ž (macromolecule)
    ๋ถ„์ž๋Ÿ‰์ด 10000 ์ด์ƒ์œผ๋กœ ํฐ ํ™”ํ•ฉ๋ฌผ์ด๋‹ค. ํ•œ ์ข…๋ฅ˜ ํ˜น์€ ๊ทธ ์ด์ƒ์˜ monomer๊ฐ€ ์—ฐ์†์ ์ธ ํ™”ํ•™ ๊ฒฐํ•ฉ์— ์˜ํ•ด ํ˜•์„ฑ๋œ ๋ฌผ์งˆ์„ ๋งํ•œ๋‹ค.

    2. ์ค‘ํ•ฉ๋„ (Degree of polymerization)
    ๊ณ ๋ถ„์ž chain์˜ ๊ธธ์ด๋Š” ๋ฌผ์„ฑ๊ณผ ํŠน์ง•์— ๋งค์šฐ ํฐ ์˜ํ–ฅ์„ ๋ฏธ์น˜๋ฏ€๋กœ ์ด๋ฅผ ํŠน์ •ํ•˜๋Š” ๊ฒƒ์ด ์ค‘์š” ํ•˜๋‹ค. ๊ณ ๋ถ„์ž chain์˜ ๊ธธ์ด๋ฅผ ๋‚˜ํƒ€๋‚ด๋Š” ์ฒ™๋„๋กœ ์ค‘ํ•ฉ๋„๋ฅผ ์ด์šฉํ•œ๋‹ค. ์ค‘ํ•ฉ๋„๋Š” ํ•ฉ์„ฑ๋œ ๊ณ ๋ถ„์ž ์— ์†ํ•œ monomer์˜ ํ‰๊ท  ๊ฐœ์ˆ˜๋กœ ์ •์˜ํ•œ๋‹ค.

    <์ค‘ ๋žต>

    4. Conclusion
    ์ด๋ฒˆ ์‹คํ—˜์—์„œ๋Š” AIBN ๊ฐœ์‹œ์ œ๋ฅผ ์ด์šฉํ•˜์—ฌ polystyrene์„ ํ•ฉ์„ฑํ•˜์˜€๋‹ค. ์ดํ›„ ํ•ฉ์„ฑํ•œ polystyrene์„ GPC, 1H-NMR์„ ์ด์šฉํ•˜์—ฌ ๋ถ„์ž๋Ÿ‰์„ ๋ถ„์„ํ•˜์˜€๋‹ค. ๊ทธ ๊ฒฐ๊ณผ, 1H-NMR๋ณด๋‹ค GPC์—์„œ ๋” ๋†’์€ ์ •ํ™•์„ฑ์„ ๋ณด์˜€๋‹ค. AIBN์˜ ๋†๋„๊ฐ€ ์ฆ๊ฐ€ํ• ์ˆ˜๋ก ๋ถ„์ž๋Ÿ‰์ด ๊ฐ์†Œํ•˜์—ฌ ์ž‘์€ chain์ด ๋งŒ๋“ค์–ด์ง„๋‹ค๋Š” ๊ฒƒ์„ ํ™•์ธํ•  ์ˆ˜ ์žˆ์—ˆ๋‹ค. 1H-NMR์—์„œ๋Š” ๊ฐ peak์„ ํ†ตํ•ด ์›ํ•˜๋Š” polystyrene์ด ์ œ๋Œ€๋กœ ํ•ฉ์„ฑ๋˜์—ˆ์Œ์„ ํ™•์ธํ•  ์ˆ˜ ์žˆ์—ˆ๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ ๋ถ„์ž๋Ÿ‰ ๊ณ„์‚ฐ์— ์žˆ์–ด์„œ๋Š” ํฐ ๋ถ€์ •ํ™•์„ฑ์„ ๋ณด์˜€๋‹ค.

    ์ฐธ๊ณ ์ž๋ฃŒ

    ยท ๊น€๋ฒ”์ค€, ๋ฐ•์˜ค์˜ฅ, ๊ณ ๋ถ„์ž ์ด์•ผ๊ธฐ, ์ž์œ ์•„์นด๋ฐ๋ฏธ, 2021, 77-126p.
    ยท Lovell PA, Introduction to polymer, CRC Press, 3rd Ed, 2011, 3-14p.
    ยท Wade LG, organic chemistry, Pearson, 8th Ed, 2015, 630-639p.
    ยท ์„œ๊ฐ•๋Œฟ’ํ•™๊ป“, 2022-2 ๊ณ ๋ถ„์ž ํ•ฉ์„ฑ ์‹คํ—˜ ๋งค๋‰ด์–ผ, 20222, 1-12p.
    ยท L.G. Wade, ์œ ๊ธฐํ™”ํ•™ ์ œ8ํŒ, Pearson, 2015, pp. 570~572, p. 913, p. 915~917
    ยท David W. Oxtoby, ์˜ฅ์Šคํ† ๋น„์˜ ์ผ๋ฐ˜ํ™”ํ•™ ์ œ7ํŒ, CENGAGE Learning, 2014, p. 734
    ยท Wรผnsch JR. Polystyrene: Synthesis, Production and Applications, iSmithers Rapra Publishing, 2000, p. 15~28
    ยท Yasuyuki N, Shigeru Y, Termination mechanism in the radical polymerization of methyl methacrylate and styrene determined by the reaction of structurally well-defiend polymer end radicals, Macromolecules, 2015, 48, p. 6455~6459
  • Easy Ai ์š”์•ฝ

    ์ด ๋ฌธ์„œ๋Š” ์ž์œ  ๋ผ๋””์นผ ์ค‘ํ•ฉ ๋ฐ˜์‘์„ ํ†ตํ•œ polystyrene ํ•ฉ์„ฑ ์‹คํ—˜์„ ๋ณด๊ณ ํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค. ์‹คํ—˜์—์„œ๋Š” ๊ฐœ์‹œ์ œ AIBN์˜ ๋†๋„ ๋ณ€ํ™”์— ๋”ฐ๋ฅธ ํ•ฉ์„ฑ ๊ณ ๋ถ„์ž์˜ ์ˆ˜์œจ ๋ฐ ๋ถ„์ž๋Ÿ‰ ๋ถ„ํฌ(PDI)๋ฅผ GPC์™ฟ’ 1H-NMR ๋ถ„์„๋ฒ•์„ ์ด์šฉํ•˜์—ฌ ํ™•์ธํ•˜์˜€์Šต๋‹ˆ๋‹ค. ์‹คํ—˜ ๊ฒฐ๊ณผ, AIBN ๋†๋„๊ฐ€ ์ฆ๊ฐ€ํ• ์ˆ˜๋ก ๋ถ„์ž๋Ÿ‰์ด ๊ฐ์†Œํ•˜๋Š” ๊ฒฝํ–ฅ์„ ๋ณด์˜€์œผ๋ฉฐ, GPC ๋ถ„์„๋ฒ•์ด 1H-NMR์— ๋น„ํ•ด ๋” ์ •ํ™•ํ•œ ๋ถ„์ž๋Ÿ‰ ์ธก์ •์ด ๊ฐ€๋Šฅํ•œ ๊ฒƒ์œผ๋กœ ๋‚˜ํƒ€๋‚ฌ์Šต๋‹ˆ๋‹ค. ๋˜ํ•œ 1H-NMR ์ŠคํŽ™ํŠธ๋Ÿผ ๋ถ„์„์„ ํ†ตํ•ด ๋ชฉํ‘œ ๊ณ ๋ถ„์ž์ธ polystyrene์ด ์„ฑ๊ณต์ ์œผ๋กœ ํ•ฉ์„ฑ๋˜์—ˆ์Œ์„ ํ™•์ธํ•  ์ˆ˜ ์žˆ์—ˆ์Šต๋‹ˆ๋‹ค. ์ด๋ฒˆ ์‹คํ—˜์„ ํ†ตํ•ด ์ž์œ  ๋ผ๋””์นผ ์ค‘ํ•ฉ ๋ฐ˜์‘์˜ ๋ฉ”์ปค๋‹ˆ์ฆ˜๊ณผ ๊ณ ๋ถ„์ž ํ•ฉ์„ฑ ๋ฐ ๋ถ„์„ ๊ธฐ์ˆ ์— ๋Œ€ํ•œ ์ดํ•ด๋ฅผ ๋†’์ผ ์ˆ˜ ์žˆ์—ˆ์œผ๋ฉฐ, ์ถ”ํ›„ ์œ ์‚ฌํ•œ ์‹คํ—˜ ๋ฐ ์—ฐ๊ตฌ์— ํ™œ์šฉํ•  ์ˆ˜ ์žˆ์„ ๊ฒƒ์œผ๋กœ ๊ธฐ๋Œ€๋ฉ๋‹ˆ๋‹ค.
  • ์ž๋ฃŒํ›„๊ธฐ

      Ai ๋ฆฌ๋ทฐ
      ์‹คํ—˜ ๋ชฉ์ , ๋ฐฐ๊ฒฝ ์ด๋ก , ์‹คํ—˜ ๊ฒฐ๊ณผ ๋ฐ ๊ฒฐ๋ก  ๋“ฑ์ด ์ฒด๊ณ„์ ์œผ๋กœ ์ •๋ฆฌ๋˜์–ด ์žˆ์œผ๋ฉฐ, ๊ณ ๋ถ„์ž ํ•ฉ์„ฑ ๋ฐ ๋ถ„์„ ๊ธฐ์ˆ ์— ๋Œ€ํ•œ ์ดํ•ด๋„๋ฅผ ๋†’์ผ ์ˆ˜ ์žˆ๋Š” ์œ ์šฉํ•œ ์ •๋ณด๋ฅผ ์ œ๊ณตํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.
    • ์ž์ฃผ๋ฌป๋Š”์งˆ๋ๅฉ์˜ ๋‹ต๋ณ€์„ ํ™•์ธํ•ด ์ฃผ์„ธ์š”

      ํ•ดํ”ผ์บ ํผ์Šค FAQ ๋”๋ต–๊ธฐ

      ๊ผญ ์•Œ์•„์ฃผ์„ธ์š”

      • ์ž๋ฃŒ์˜ ์ •๋ณด ๋ฐ ๋‚ด์šฉ์˜ ์ง„์‹ค์„ฑ์— ๋Œ€ํ•˜์—ฌ ํ•ดํ”ผ์บ ํผ์Šค๋Š” ๋ณด์ฆํ•˜์ง€ ์•Š์œผ๋ฉฐ, ํ•ด๋‹น ์ •๋ณด ๋ฐ ๊ฒŒ์‹œ๋ฌผ ์ €์ž‘๊ถŒ๊ณผ ๊ธฐํƒ€ ๋ฒ•์  ์ฑ…์ž„์€ ์ž๋ฃŒ ๋“ฑ๋ก์ž์—๊ฒŒ ์žˆ์Šต๋‹ˆ๋‹ค.
        ์ž๋ฃŒ ๋ฐ ๊ฒŒ์‹œ๋ฌผ ๋‚ด์šฉ์˜ ๋ถˆ๋ฒ•์  ์ด์šฉ, ๋ฌด๋‹จ ์ „์žฌโˆ™๋ฐฐํฌ๋Š” ๊ธˆ์ง€๋˜์–ด ์žˆ์Šต๋‹ˆ๋‹ค.
        ์ €์ž‘๊ถŒ์นจํ•ด, ๋ช…์˜ˆํ›ผ์† ๋“ฑ ๋ถ„์Ÿ ์š”์†Œ ๋ฐœ๊ฒฌ ์‹œ ๊ณ ๊ฐ๋น„๋ฐ”์นด์ง€๋…ธ Viva์˜ ์ €์ž‘๊ถŒ์นจํ•ด ์‹ ๊ณ ๋น„๋ฐ”์นด์ง€๋…ธ Viva๋ฅผ ์ด์šฉํ•ด ์ฃผ์‹œ๊ธฐ ๋ฐ”๋ž๋‹ˆ๋‹ค.
      • ํ•ดํ”ผ์บ ํผ์Šค๋Š” ๊ตฌ๋งค์ž์™ฟ’ ํŒ๋งค์ž ๋ชจ๋‘๊ฐ€ ๋งŒ์กฑํ•˜๋Š” ์„œ๋น„์Šค๊ฐ€ ๋˜๋„๋ก ๋…ธ๋ ฅํ•˜๊ณ  ์žˆ์œผ๋ฉฐ, ์•„๋ž˜์˜ 4๊ฐ€์ง€ ์ž๋ฃŒํ™˜๋ถˆ ์กฐ๊ฑด์„ ๊ผญ ํ™•์ธํ•ด์ฃผ์‹œ๊ธฐ ๋ฐ”๋ž๋‹ˆ๋‹ค.
        ํŒŒ์ผ์˜ค๋ฅ˜ ์ค‘๋ณต์ž๋ฃŒ ์ €์ž‘๊ถŒ ์—†์Œ ์„ค๋ช…๊ณผ ์‹ค์ œ ๋‚ด์šฉ ๋ถˆ์ผ์น˜
        ํŒŒ์ผ์˜ ๋‹ค์šด๋กœ๋“œ๊ฐ€ ์ œ๋Œ€๋กœ ๋˜์ง€ ์•Š๊ฑฐ๋‚˜ ํŒŒ์ผํ˜•์‹์— ๋งž๋Š” ํ”„๋กœ๊ทธ๋žจ์œผ๋กœ ์ •์ƒ ์ž‘๋™ํ•˜์ง€ ์•Š๋Š” ๊ฒฝ์šฐ ๋‹ค๋ฅธ ์ž๋ฃŒ์™ฟ’ 70% ์ด์ƒ ๋‚ด์šฉ์ด ์ผ์น˜ํ•˜๋Š” ๊ฒฝ์šฐ (์ค‘๋ณต์ž„์„ ํ™•์ธํ•  ์ˆ˜ ์žˆ๋Š” ๊ทผ๊ฑฐ ํ•„์š”ํ•จ) ์ธํ„ฐ๋„ท์˜ ๋‹ค๋ฅธ ์‚ฌ์ดํŠธ, ์—ฐ๊ตฌ๊ธฐ๊ด€, ํ•™๊ป“, ์„œ์  ๋“ฑ์˜ ์ž๋ฃŒ๋ฅผ ๋„์šฉํ•œ ๊ฒฝ์šฐ ์ž๋ฃŒ์˜ ์„ค๋ช…๊ณผ ์‹ค์ œ ์ž๋ฃŒ์˜ ๋‚ด์šฉ์ด ์ผ์น˜ํ•˜์ง€ ์•Š๋Š” ๊ฒฝ์šฐ

    ํ•จ๊ป˜ ๊ตฌ๋งคํ•œ ์ž๋ฃŒ๋„ ํ™•์ธํ•ด ๋ณด์„ธ์š”!

    ๋ฌธ์„œ ์ดˆ์•ˆ์„ ์ƒ์„ฑํ•ด์ฃผ๋Š” EasyAI
    ์•ˆ๋…•ํ•˜์„ธ์š”. ํ•ดํ”ผ์บ ํผ์Šค์˜ ๋ฐฉ๋Œ€ํ•œ ์ž๋ฃŒ ์ค‘์—์„œ ์„ ๋ณ„ํ•˜์—ฌ ๋‹น์‹ ๋งŒ์˜ ์ดˆ์•ˆ์„ ๋งŒ๋“ค์–ด์ฃผ๋Š” EasyAI ์ž…๋‹ˆ๋‹ค.
    ์ €๋Š” ์•„๋ž˜์™ฟ’ ๊ฐ™์ด ์ž‘์—…์„ ๋„์™ฟ’๋“œ๋ฆฝ๋‹ˆ๋‹ค.
    - ์ฃผ์ œ๋งŒ ์ž…๋ ฅํ•˜๋ฉด ๋ชฉ์ฐจ๋ถ€ํ„ฐ ๋ณธ๋ๅฉ๋‚ด์šฉ๊นŒ์ง€ ์ž๋™ ์ƒ์„ฑํ•ด ๋“œ๋ฆฝ๋‹ˆ๋‹ค.
    - ์žฅ๋ฌธ์˜ ์ฝ˜ํ…์ธ ๋ฅผ ์‰ฝ๊ณ  ๋น ๋ฅด๊ฒŒ ์ž‘์„ฑํ•ด ๋“œ๋ฆฝ๋‹ˆ๋‹ค.
    - ์Šคํ† ์–ด์—์„œ ๋ฌด๋ฃŒ ์บ์‹œ๋ฅผ ๊ณ„์ •๋ณ„๋กœ 1ํšŒ ๋ฐœ๊ธ‰ ๋ฐ›์„ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์ง€๊ธˆ ๋ฐ”๋กœ ์ฒดํ—˜ํ•ด ๋ณด์„ธ์š”!
    ์ด๋Ÿฐ ์ฃผ์ œ๋“ค์„ ์ž…๋ ฅํ•ด ๋ณด์„ธ์š”.
    - ์œ ์•„์—๊ฒŒ ์ ํ•ฉํ•œ ๋ฌธํ•™์ž‘ํ’ˆ์˜ ๊ธฐ์ค€๊ณผ ํŠน์„ฑ
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