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Thesis Defense Announcement for Cheng-Wei Tai
by Johnson, Beverly J 17 May '22

17 May '22

This email is to announce that Cheng-Wei Tai, will be defending his thesis Theoretical and Experimental Study of Non-spherical Microparticle Dynamics in Viscoelastic Fluid Flows, Tuesday, May 24, 2022 at 2:00 PM by Zoom. The dissertation is directed by Dr. Vivek Narsimhan. The abstract is attached, the Zoom information is below, and all are welcome to attend. Bev Johnson Graduate Program Administrator Chemical Engineering Forney Hall 2037D Purdue University 765-494-4057 [P bling] Cheng-Wei Tai is inviting you to a scheduled Zoom meeting. Topic: Cheng-Wei Tai Thesis Defense Time: May 24, 2022 02:00 PM Eastern Time (US and Canada) Join Zoom Meeting https://purdue-edu.zoom.us/j/99974533697?pwd=SkJyTWRqaG9oMlgyNWU2eTJyR093Zz… Meeting ID: 999 7453 3697 Passcode: 546025 One tap mobile +13126266799,,99974533697#,,,,*546025# US (Chicago) +16465588656,,99974533697#,,,,*546025# US (New York) Dial by your location +1 312 626 6799 US (Chicago) +1 646 558 8656 US (New York) +1 301 715 8592 US (Washington DC) +1 346 248 7799 US (Houston) +1 669 900 6833 US (San Jose) +1 253 215 8782 US (Tacoma) Meeting ID: 999 7453 3697 Passcode: 546025 Find your local number: https://purdue-edu.zoom.us/u/ab5m82QaAC

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FW: GSO Election Results
by Johnson, Beverly J 16 May '22

16 May '22

Hi all, We are excited to announce the new GSO Officers for the 2022-2023 academic year! We have enjoyed serving as GSO leaders, and are looking forward to all the wonderful things the next GSO administration will offer! President - Montgomery Smith Vice President - Jiselle Thornby Outreach Chair - Kurt Russell Sustainability - Dharini Varadharajan Social Chair - Zuhal Cakir Sports Chair - Melissa Marsing PGSG Chair - Annie Sun Cocurricular Chair - Ajay Harishankar Kumar First Year Reps - Angelique Klimek & Tyler Roberts Student Advocacy - Anne Serban Safety Chair - Jackson Harris Communications Chair - Juan Manuel Vazquez Best, Daniel and Paulina Daniel Hayes He / Him / His Former GSO Vice President/Treasurer Davidson School of Chemical Engineering Purdue University West Lafayette, IN hayes187(a)purdue.edu<mailto:hayes187@purdue.edu> [cid:image001.png@01D8691C.786E87A0]

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Faculty, Staff, Grad Student Reception - May 24, 2022
by Gonzalez, Joshua 16 May '22

16 May '22

Dear All, I am happy to announce that this year we will indeed be able to resume our annual appreciation reception for all faculty, staff, and graduate students. It has been scheduled for May 24, 2022 at 2:30 p.m. - 3:30 p.m. in the FRNY Atrium. For those who are new to our community post-Covid, this reception is held as a thank you to all the contributions in making this year another successful one. We also take this opportunity to announce various awards to those who have performed at a high level. Due to this reception being held later in May, I ask that you please R.S.V.P. so that we can ensure we have enough food catered. As I know some have already left campus or are not as frequently on campus now that the school year has ended. R.S.V.P. HERE<https://purdue.ca1.qualtrics.com/jfe/form/SV_6KAiDa3FHLQhxLE> As mentioned, we will be serving food for everyone to enjoy. We look forward to seeing you all there! Sincerely, Joshua --- [Davidson_H-Full-CMYK_1200px] <https://engineering.purdue.edu/ChE> Joshua Gonzalez Operations Coordinator [Phone_1D_11x16px] (765) 494-4365 | [Fax_1D_16x16px] (765) 494-0805 [https://marketing.purdue.edu/Email/TemplateSets/ChE/Templates/Template04/Im…]<https://engineering.purdue.edu/ChE> Faculty, Staff, & Graduate Student Appreciation Reception You're Invited... Tuesday, May 24, 2022 2:30 - 3:30 p.m. Henson Atrium (FRNY) Please join us as we resume our annual appreciation reception and celebrate all the work contributed the past couple years! Let us know you are attending: R.S.V.P HERE<https://purdue.ca1.qualtrics.com/jfe/form/SV_6KAiDa3FHLQhxLE> HOPE TO SEE YOU ALL THERE! Davidson School of Chemical Engineering<https://engineering.purdue.edu/ChE> Purdue University West Lafayette, IN 47907 (765) 494-4050<tel:+17654944050> (c) 2022 Purdue University<http://www.purdue.edu/purdue/disclaimer.html> All rights reserved An equal access/equal opportunity university<http://www.purdue.edu/purdue/ea_eou_statement.html>

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RO system addition
by Valley, Jeffrey L 13 May '22

13 May '22

BE ADVISED - Unfortunately the RO system is still down on the addition side - waiting for parts to arrive - which means there will be no RO water available. Sorry and thanks Jeff Valley

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FRNY Swipe Readers Potential Issues
by Gonzalez, Joshua 11 May '22

11 May '22

Dear All, Please be aware that the swipe readers are being upgraded today and this may cause some of them to go down or experience issues with reading specific PUIDs. ECN will let me know once they are finished with their process. I appreciate your understanding, thank you so much. Sincerely, Joshua --- [Davidson_H-Full-CMYK_1200px] <https://engineering.purdue.edu/ChE> Joshua Gonzalez Operations Coordinator [Phone_1D_11x16px] (765) 494-4365 | [Fax_1D_16x16px] (765) 494-0805

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Reminder: N95 Masks
by Hays, Lauren M 10 May '22

10 May '22

Good Morning, Just a reminder if you are needing an N95 masks that we have a supply at Jason Davenport's office, FRNY G134A. Best Regards, Lauren Hays Administrative Assistant/FRNY 1060 Purdue University | Charles D. Davidson School of Chemical Engineering West Lafayette, IN 47907 Phone: 765-494-4050 Fax: 765-494-0805 hays14(a)purdue.edu<mailto:hays14@purdue.edu>

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New ChE Safety Committee members
by Nagy, Gabriela 03 May '22

03 May '22

Hello Everyone, I am glad to announce that at the ChE Safety Committee's recommendation, Dr. Corti appointed the following graduate students to serve on the ChE Safety Committee for the next two years, effective May 1st , 2022: 1. Melissa Marsing (advised by Dr. Morgan) 2. Dharini Varadharajan (co-advised by Dr. Dou and Dr. Boudouris) At the same time, on behalf of the ChE Safety Committee, I would like to thank Siddhartha Akkiraju and Arnav Deshpande for their exemplary service on the safety committee over the last two years. Their effort and input in the safety committee work helped increase the safety culture in our School! We wish them all the best as they are getting ready to embark in their new careers. Many thanks to David Dean as well, for his outstanding service on the safety committee as the GSO safety officer on the committee for the last two years; we are looking forward to welcoming the next GSO safety officer on the safety committee and to working with them over the next year. Sincerely, Gabriela On behalf of the ChE safety Committee __________________ Gabriela Nagy, PhD Industrial Education Director Davidson School of Chemical Engineering Room FRNY G051 Purdue University Tel: (765)-496-1710 E-mail: nagyg(a)purdue.edu<mailto:nagyg@purdue.edu>

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**REMINDER** Graduate Seminar Series - TODAY - Faculty Lectureship - Siddhartha Akkiraju (MANDATORY FOR ALL PHD STUDENTS)
by Waling, Robin M 28 Apr '22

28 Apr '22

Dear All, On behalf of Purdue University's Davidson School of Chemical Engineering, we are glad to announce our upcoming Graduate Seminar Series Lecturer Siddhartha Akkiraju from the Department of Chemical Engineering, Purdue University. He will be presenting at Purdue University on Thursday, April 28, 2022. You will find further detail regarding the lecture at the end of this email. [https://marketing.purdue.edu/Email/TemplateSets/ChE/Templates/Template04/Im…]<https://engineering.purdue.edu/ChE> Graduate Seminar Series [cid:image002.jpg@01D858AA.44EA25B0] Siddhartha Akkiraju Chemical Engineering Purdue University Biography: Siddhartha Akkiraju obtained his B.S. in chemical engineering in 2017 from the University of California, San Diego. While in undergrad he worked in Professor Ratnesh Lal's group on the synthesis and functionalization of Janus nanoparticles. After arriving at Purdue, he joined Professor Bryan Boudouris' group. At Purdue he studies the structure-property relationships of radical polymers to design and develop the next generation of macromolecules for organic electronic devices. ******* ******* Structure-Magnetic Property Relationships in Radical Polymers Thursday, April 28, 2022 3:00 p.m. - 4:15 p.m. FRNY G140 - Reception at 2:30 PM- Abstract: Recently, there has been significant increase in research and development in the field of organic electronics. This is mainly because organic electronic devices can be flexible, lightweight, and processed from solution using low-cost manufacturing techniques. Typically, these devices have utilized conjugated polymers as their active layer components. This approach has been successful, but the use of conjugated polymers comes with limitations. To address these limitations and expand the field of organic electronics, this work studies a novel class of macromolecules, radical polymers. Unlike their conjugated polymer counterparts, radical polymers are comprised of a non-conjugated backbone with stable open-shell groups at their pendant sites. This work quantifies the electron exchange behavior of poly(4-glycidyloxy-2,2,6,6-tetramethylpiperidine-1-oxyl) (PTEO). Due to the high number of pendant open-shell sites, PTEO displays strong paramagnetic behavior. Electron paramagnetic resonance spectroscopy revealed that 4-hydroxy-2,2,6,6-tetramethylpiperidin-N-oxy (TEMPO-OH), 4-glycidyloxy-2,2,6,6-tetramethylpiperidine-1-oxyl (TEO), and PTEO showed rapid electron exchange between the pendant radical groups. When compared to TEMPO-OH and TEO, there was more interaction between the unpaired electrons in PTEO due to their proximity along the polymer chain. This phenomenon was confirmed through magnetic susceptibility, Xm, measurements between 2 K and 300 K. At 2 K, TEMPO-OH and TEO had a Xm of 1.8×10-2 emu mol-1 and 4.6×10-2 emu mol-1. PTEO on the other hand, had a Xm of 1.3×10-1 emu mol-1. Due to its amorphous nature, PTEO had weak antiferromagnetic interactions. However, thin films of PTEO with TEMPO-OH additives showed increased antiferromagnetic interactions between the open-shell sites as well as stronger magnetoresistance effects. In conclusion, radical polymers offer researchers an opportunity to explore an underutilized class of macromolecules. By studying the structure-property relationships, we can gain better insight into radical polymers and develop novel materials for the next generation of organic electronics. ******* ******* Davidson School of Chemical Engineering<https://engineering.purdue.edu/ChE> Purdue University West Lafayette, IN 47907 (765) 494-4050<tel:+17654944050> © 2022 Purdue University<http://www.purdue.edu/purdue/disclaimer.html> All rights reserved An equal access/equal opportunity university<http://www.purdue.edu/purdue/ea_eou_statement.html>

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Enforcement of FRNY Conference Room Policy
by Gonzalez, Joshua 27 Apr '22

27 Apr '22

Dear All, In light of recent issues with conference rooms and the School's policy regarding them, we will begin enforcing the need to contact one of the administrative assistants in order to reserve a conference room. Any calendar invite without sufficient information that is sent to any of the conference room calendars will be declined due to it being an out of policy request. These new changes should not affect those with current permissions for making reservations but rather close the loophole for bypassing reservation approval for those without appropriate permission. To reserve a conference room, please visit any of our administrative assistants or contact our Main Office either via phone (765-494-4050) or email (chemain(a)purdue.edu<mailto:chemain@purdue.edu>). This will help ensure a more efficient use of resources for our school as well as make sure that they are being appropriately used/scheduled. Sincerely, Joshua --- [Davidson_H-Full-CMYK_1200px] <https://engineering.purdue.edu/ChE> Joshua Gonzalez Operations Coordinator [Phone_1D_11x16px] (765) 494-4365 | [Fax_1D_16x16px] (765) 494-0805

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Graduate Seminar Series - April 28th - Faculty Lectureship - Siddhartha Akkiraju (MANDATORY FOR ALL PHD STUDENTS)
by Waling, Robin M 27 Apr '22

27 Apr '22

Dear All, On behalf of Purdue University's Davidson School of Chemical Engineering, we are glad to announce our upcoming Graduate Seminar Series Lecturer Siddhartha Akkiraju from the Department of Chemical Engineering, Purdue University. He will be presenting at Purdue University on Thursday, April 28, 2022. You will find further detail regarding the lecture at the end of this email. [https://marketing.purdue.edu/Email/TemplateSets/ChE/Templates/Template04/Im…]<https://engineering.purdue.edu/ChE> Graduate Seminar Series [cid:image002.jpg@01D858AA.44EA25B0] Siddhartha Akkiraju Chemical Engineering Purdue University Biography: Siddhartha Akkiraju obtained his B.S. in chemical engineering in 2017 from the University of California, San Diego. While in undergrad he worked in Professor Ratnesh Lal's group on the synthesis and functionalization of Janus nanoparticles. After arriving at Purdue, he joined Professor Bryan Boudouris' group. At Purdue he studies the structure-property relationships of radical polymers to design and develop the next generation of macromolecules for organic electronic devices. ******* ******* Structure-Magnetic Property Relationships in Radical Polymers Thursday, April 28, 2022 3:00 p.m. - 4:15 p.m. FRNY G140 - Reception at 2:30 PM- Abstract: Recently, there has been significant increase in research and development in the field of organic electronics. This is mainly because organic electronic devices can be flexible, lightweight, and processed from solution using low-cost manufacturing techniques. Typically, these devices have utilized conjugated polymers as their active layer components. This approach has been successful, but the use of conjugated polymers comes with limitations. To address these limitations and expand the field of organic electronics, this work studies a novel class of macromolecules, radical polymers. Unlike their conjugated polymer counterparts, radical polymers are comprised of a non-conjugated backbone with stable open-shell groups at their pendant sites. This work quantifies the electron exchange behavior of poly(4-glycidyloxy-2,2,6,6-tetramethylpiperidine-1-oxyl) (PTEO). Due to the high number of pendant open-shell sites, PTEO displays strong paramagnetic behavior. Electron paramagnetic resonance spectroscopy revealed that 4-hydroxy-2,2,6,6-tetramethylpiperidin-N-oxy (TEMPO-OH), 4-glycidyloxy-2,2,6,6-tetramethylpiperidine-1-oxyl (TEO), and PTEO showed rapid electron exchange between the pendant radical groups. When compared to TEMPO-OH and TEO, there was more interaction between the unpaired electrons in PTEO due to their proximity along the polymer chain. This phenomenon was confirmed through magnetic susceptibility, Xm, measurements between 2 K and 300 K. At 2 K, TEMPO-OH and TEO had a Xm of 1.8×10-2 emu mol-1 and 4.6×10-2 emu mol-1. PTEO on the other hand, had a Xm of 1.3×10-1 emu mol-1. Due to its amorphous nature, PTEO had weak antiferromagnetic interactions. However, thin films of PTEO with TEMPO-OH additives showed increased antiferromagnetic interactions between the open-shell sites as well as stronger magnetoresistance effects. In conclusion, radical polymers offer researchers an opportunity to explore an underutilized class of macromolecules. By studying the structure-property relationships, we can gain better insight into radical polymers and develop novel materials for the next generation of organic electronics. ******* ******* Davidson School of Chemical Engineering<https://engineering.purdue.edu/ChE> Purdue University West Lafayette, IN 47907 (765) 494-4050<tel:+17654944050> © 2022 Purdue University<http://www.purdue.edu/purdue/disclaimer.html> All rights reserved An equal access/equal opportunity university<http://www.purdue.edu/purdue/ea_eou_statement.html>

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