CK Lab. - Synthetic Organic Chemistry Lab. @ CBNU Chemistry
Organic Synthesis for the Advanced Organic Materials
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Welcome to CK Lab. at Chungbuk National University!
If you want to know who we are, please read 우리 실험실은요 (화학세계 2021년 11월).
If you want to know who the boss is, please read CRIC 인터뷰 or Introducing... (Angewandte Chemie-International Edition).
Open position: 대학원생 (석박통합과정 or 박사과정 or 석사과정)
Research interests in group
Synthetic polymer science #Sugar-based polymer #Artificial biopolymer #CO2 utilized polymer #Functional brush polymer
Polymer based battery materials #Polymer electrolyte #Polymer binder
Currently, there are no fully funded post-doctoral positions available.
Twitter: @CheoljaeK
News
News
28.Aug.2025. Dayong was selected as a recipient of the pre-Doctoral Fellow from NRF. Congratulations to Dayong!
21.Aug.2025. Congratulations to Bonwoo, the first Ph.D. graduate of CK-Lab, on his graduation and the Best Ph.D. Thesis Award from College of Natural Science, CBNU!
19.Aug.2025. Cheoljae and Dayong attended the ACS Fall 2025 at Washington D.C. Cheoljae gave a talk about "Chiral degradable polymers by metathesis polymerizations from chiral acetal-based cyclic monomers". Dayong presented on "Degradable and recyclable polymers via ring-opening metathesis polymerization from low-strained cyclic monomers" at the poster session and the Sci-Mix.
13.Aug.2025. Congratulations to Gayeon and Subin for the great oral presentations at 7th CBNU Organic Chemistry Workshop.
18.Jul.2025. New publication - A collaborated research with Prof. W.-D. Jang's group at Yonsei University, titled "Thermo-responsive Poly(2-isopropyl-2-oxazoline)-based Bottlebrush Polymers via Cascade Enyne Metathesis Polymerization" is published in Macromolecular Rapid Communications. Congratulations to Bonwoo!
06.Jul.2025. Master's students attended the PPC-19 (the 19th Pacific Polymer Conference) held in Kitakyushu, Japan.
24.Jun.2025. New publication - Chemically recyclable polymer, titled "Chemically Recyclable Chiral Degradable Polymers of Unsymmetrical 7-Membered Cyclic Monomers by Ring-Opening Metathesis Polymerization" is published in Macromolecules (Supplementary cover for issue). Congratulations to Dayong and Hyobeen!
20.Jun.2025. Congratulations to Bonwoo for passing his Ph.D. defense!
25.Apr.2025. Cheoljae attended the 135th KCS meeting at Suwon. He gave a talk about "Reversible metathesis polymerization and depolymerization from strain-modulated bicyclic monomers".
18.Apr.2025. Cheoljae attended the 2025 Polymer Society of Korea Annual Spring Meeting at Jeju. He gave a talk about "Cascade enyne metatehsis polymerization for precision functional brush polymers".
28.Feb.2025. Group outing. Bowling boys and girls!
20.Feb.2025. Congratulations to Seungyoung for receiving Master's degree, and to Juyeon for Bachelor's degree!
10.Jan.2025. New publication - A collaborated research with Prof. H. Cho's group at KAIST, titled "Photocleavable Ligand-Induced Direct Photolithography of InP-based Quantum Dots" is published in ACS Energy Letters. Congratulations to Bonwoo!
Jan 2025. New members - Donghoon and Inji join the group as undergraduate student researchers. Juyeon is ready to be graduate student of the CK Lab. Welcome!
20.Dec.2024. Celebrating the 5th anniversary of CK Lab with all past and present members coming together. Thank you to all the members who have made the present and future of our lab possible.
18.Dec.2024. Congratulations to Seungyoung for passing his Master defense!
01.Dec.2024. Cheoljae presented our recent developments about chiral degradable polymers at ICCEOCA-17 (a.k.a. ACP) in Taiwan.
28.Nov.2024. Welcome to CBNU Chemistry Day! Meet us in the lobby of Building S1-6 (Dept. of Chemistry).
15.Nov.2024. Dong Hoon and Inji signed up to join the group as undergraduate researchers starting in January 2025. Welcome!
28.Oct.2024. The new GPC is now available for use with THF as the eluent! The old GPC machine was upgraded with an auto-sampler and converted for use with DMF solvent.
30.Sep.2024.-02.Oct.2024. CK Lab attended the 2024 Polymer Society of Korea Annual Fall Meeting at Busan. Dayong and Seungyoung presented posters about "Recyclable Chiral Acetal-Backboned Polymer" and "Degradable Acetal-Backboned Polymers Linked with Inorganic and Organic Materials".
02.Sep.2024. New publication - Our concept article, titled "Chiral Acetal-Based Stereo-Controlled Degradable Polymer Synthesis" is published in Chemistry - A European Journal. Congratulations to Dayong and Bonwoo!
20.Aug.2024. Congratulations to Bonwoo and Seungyoung for the great oral presentations at 5th CBNU Organic Chemistry Workshop.
11.Jul.2024. CK Lab attended the KCS Polymer Chemistry Division Summer Workshop at Yeosu.
03.Jul.2024. Group dinner with special guests from Prof. K. T. Kim's lab (LFBS) at CBNU Chemistry.
24.Jun.2024. Bonwoo was selected as a recipient of the pre-Doctoral Fellow from NRF. Congratulations to Bonwoo!
19.Jun.2024.-23.Jun.2024. Cheoljae attended KNOCS-2024 and Tateshina Conference on Organic Chemistry 2024 in Japan. He presented "Synthetic and Applicable Aspects of Precise Metathesis Polymerizations".
16.May.2024. Cheoljae received the Best Research Award from Chungbuk National University, College of Natural Science.
07.May.2024. Congaratulations to Jiwon and Seunghee for their excellent presentation of undergraduate researches.
01.Mar.2024. New publication - Our research paper, titled "Synthesis of Degradable Acetal-Backboned Polymers via Palladium-Catalyzed Hydroalkoxylation of Alkoxyallenes" is published in Asian Journal of Organic Chemistry. Congratulations to Hyobeen!
22.Feb.2024. Congratulations to Yeonsu and Hyobeen for receiving Master's degree, and to Gayeon and Subin for Bachelor's degree!
25.Jan.2024. Congratulations to Dayong for his first oral presentation at 4th CBNU Organic Chemistry Workshop.
21.Jan.2024. New publication - Our research paper, titled "Tailoring molecular weight distribution via polymer degradability" is published in Polymer Chemistry. Congratulations to Yeonsu!
Jan 2024. New members - Seunghee and Jiwon join the group as undergraduate student researchers. Subin and Gayeon are ready to be graduate student of the CK Lab. Welcome!
21.Dec.2023. Group dinner to celebrate the successful defenses and the end of the year!
15.Dec.2023. Congratulations to Yeonsu and Hyobeen for passing her Master defense!
13.Nov.2023. New publication - Our research paper, titled "Synthesis of Stereocontrolled Degradable Polymer by Living Cascade Enyne Metathesis Polymerization", is published in Angewandte Chemie International Edition. Congratulations to Bonwoo!
25.Oct.2023.-27.Oct.2023. CK Lab attended the 132nd KCS meeting at Gwangju. Cheoljae presented "Living cascade enyne metathesis polymerization for stereo-defined degradable polymer and its application in controlling the molecular weight distribution" at the symposium on Recent Trends in Polymer Synthesis. Bonwoo presented an oral presentation about "Synthesis of stereocontrolled N,O-acetal-containing polymer by cascade enyne metathesis polymerization". Dayong presented a poster about "Depolymerizable and degradable polymer from cyclic acetal via entropy-driven ring-opening metathesis polymerization".
13.Oct.2023. Cheoljae presented "Metathesis polymerizations for degradable polymers and beyond" at 2023 Polymer Society of Korea Annual Fall Meeting.
21.Aug.2023. Congratulations to Yeonsu and Hyobeen for their first oral presentations at 3rd CBNU Organic Chemistry Workshop.
14.Aug.2023. Cheoljae presented our recent researches "Metathesis polymerizations for functionalized degradable polymers" at ACS Fall 2023.
06.Jul.2023. CK Lab attended the KCS Polymer Chemistry Division Summer Workshop at Yeosu. Here are lucky box winners, too!
22.Jun.2023. Group dinner with special guests from CHOI lab at CBNU Chemistry.
May 2023. New publication - "Efficient and strategical installations of quaternary ammonium groups in metal–organic frameworks for hydroxide conductivity" in Molecular Systems Design & Engineering.
02.May.2023. Congaratulations to Yujin, Yubin, Minseo, and Subin for their excellent presentations of undergraduate researches.
16.Feb.2023. Congratulations to Huijin for receiving her Master's degree!
14.Feb.2023. New publication - Our research paper, titled "Synthesis of air-stable poly(benzonorbornadiene)s via ring-opening metathesis polymerization" is published in Journal of Polymer Science. Congratulations to Huijin!
Jan 2023. New members - Yujin, Yubin, Minseo, Subin and Gayeon join the group as undergraduate student researchers. Seungyoung is ready to be graduate student of the CK Lab. Welcome!
15.Dec.2022. New HPLC machine is ready for a chiral analysis.
09.Dec.2022. Congratulations to Huijin for passing her Master defense!
12.Oct.2022. Group outing. Play bowling after Korean BBQ dinner.
12.Sep.2022. New publication - Our first original research paper, titled "The Formation of Photodegradable Nitrophenylene Polymers via Ring-Opening Metathesis Polymerization", is published in Polymer Chemistry (Front cover for issue). Congratulations to Bonwoo and Dayong!
24.Aug.2022.-26.Aug.2022. CK Lab attended the 22th KCS Organic Chemistry Division Summer Workshop at Sokcho. Huijin, Yeonsu and Hyobeen present posters about "Stable Benzonorbonadiene Polymers via Ring-opening Metathesis Polymerization", "Novel molecular weight control of polymer by cutting of the precisely synthesized polymer chain containing degradable unit" and "Pd-catalyzed polymerization of degradable and recyclable polymer containing allylic O,O-acetal". Congratulations, Hyobeen for the excellent presentation awards.
17.Aug.2022. Congratulations to Huijin Lee for her first oral presentation at 2nd CBNU Organic Chemistry Workshop.
07.Jul.2022. Thank Prof. Hoyong Chung for visiting CBNU Chemistry and giving a great seminar again.
23.May.2022. Group outing. Play bowling and drink beer after delicious dinner.
May 2022. New publication - "Post-synthetic ligand cyclization in metal–organic frameworks through functional group connection with regioisomerism" in Chemical Communications.
27.Apr.2022. Congaratulations to Jaehak and Seungyoung for their excellent presentations of undergraduate researches.
13.Apr.2022.-15.Apr.2022. CK Lab attended the 129th KCS meeting at Jeju. Bonwoo presented an oral presentation about "Development of New Photo-Cleavable Polymers via ROMP". Huijin and Da Yong present posters about "Synthesis of Stable Benzonorbonadiene Polymers via Ring-opening Metathesis Polymerization" and "Study of the photo-controllable catalytic activity of azobenzene containing Ru olefin metathesis catalyst". Congratulations, Bonwoo (oral presentation) and Huijin (poster) for the excellent presentation awards.
Feb 2022. New publication - "Recent advances in catalytic [3,3]-sigmatropic rearrangements" in Catalysts. Congratulations to Huijin!
Feb 2022. New publication - "Biosensors Based on Bivalent and Multivalent Recognition by Nucleic Acid Scaffolds" in Applied Sciences.
Jan 2022. New publication - "N-heterocyclic Carbene Containing Homogeneous Ru Catalyst for Aqueous Atom Transfer Radical Polymerization of Water-soluble Vinyl Monomers" in Polymer.
Jan 2022. New members - Seungyoung and Jaehak join the group as undergraduate student researchers. Da Yong, Hyobeen, and Yeonsu are ready to be graduate students of the CK Lab. Welcome!
Nov.2021. See 우리 실험실은요 (화학세계 2021년 11월)
12.Nov.2021. Group lunch with vaccinated students.
22.Oct.2021. Cheoljae attended the 2021 Polymer Society of Korea Annual Fall Meeting at Gyeongju. He gave a talk about "Photodegradable backbone via ROMP".
13.Oct.2021.-15.Oct.2021. CK Lab attended the 128th KCS meeting at Busan. Bonwoo presented a poster for the first time.
19.Aug.2021. The glovebox has been installed! Thank Prof. Min Kim for sharing this new equipment.
18.Aug.2021. Congratulations to Bonwoo Koo for his first oral presentation at 1st CBNU Organic Chemistry Workshop.
04.Aug.2021. New equipment! GPC (THF as eluent).
01.Aug.2021. A message from the boss' niece and the answers from students.
13.Jul.2021. Thank Prof. Hoyong Chung for visiting CBNU Chemistry and giving a great seminar.
13.May.2021. Congaratulations to Ji Eun, Jina, Yeonsu, and Hyobeen for their excellent presentations of undergraduate researches.
10.May.2021. Making a handmade UV light station.
Jan 2021. New publication - "Visible light photochemical reactions for nucleic acid-based tevchnologies" in Molecules. Congratulations to Bonwoo!
Jan 2021. New members - Jina, Ji Eun, Hyobeen, and Yeonsu join the group as undergraduate student researchers. Huijin is ready to be a graduate student of the CK Lab. Welcome!
08.Oct.2020. Clean up the chemicals, and have dinner together.
13.Aug.2020. New equipment! Centrifuge. Thank Prof. Myung Hwan Park for sharing this new equipment.
Aug.2020. New publication - "Transition Metal-Catalyzed α-Position Carbon-Carbon Bond Formations of Carbonyl Derivatives " in Catalysts.
Jul.2020. New publication - "Synthesis of Unsymmetrical Sulfamides and Polysulfamides Via SuFEx Click Chemistry" in Chem. Sci.
Jul.2020. New publication - "Stereoretentive Ring-Opening Metathesis Polymerization to Access All-cis Poly(p-phenylene vinylene)s with Living Characteristics" in JACS.
21.Apr.2020. New equipment! Syringe pump.
17.Apr.2020. Additional rotavap.
Apr 2020. New member - Jaehee Bae joins the group as undergraduate student researcher. Welcome!
27.Mar.2020. New equipment! Very powerful rotavap. New diaphrame pumps.
19.Feb. 2020. Bonwoo's graduation dinner. Congratulates!
21. Jan. 2020. AM 11:10. Set up the first reactions in CK Lab!
6. Jan 2020. What a magic! A whole new lab.
←Before
After→
Jan 2020. New members - Yun Ji, Byoung Hyun, Da Yong, Jung Hoon, and Huijin join the group as undergraduate student researchers. Bonwoo is ready to be the first graduate student of the CK Lab. Welcome!
Dec 2019. New publication - The first paper has been published in Catalysts. Congratulates!
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