Misplaced Pages

Timothy P. Lodge (born 11 April 1954) is an American polymer scientist.

Lodge is a Regents Professor (2013–present), an Institute of Technology Distinguished Professor (2004–present), and a Distinguished McKnight University Professor (2001–present) in the Department of Chemistry and the Department of Chemical Engineering and Materials Science at the University of Minnesota, Twin Cities, Minneapolis-Saint Paul, Minnesota where he has been a faculty member since 1982. He served as the Editor-in-Chief of the American Chemical Society journal Macromolecules for 17 years (2001–2017) and as the founding editor of ACS Macro Letters (2011–2018).

He is recognized for his research in polymer science, especially fundamental explorations of polymer chain dynamics in miscible blends, block polymers, multicompartment micelles and polymers in ionic liquids. According to Web of Science, he has produced 331 published works that have been cited over 12,400 times, with an h-index of 62 as of April 6, 2014. He is also co-author, with Paul Hiemenz, of the textbook, Polymer Chemistry, 2nd edition.

Background and personal life

Timothy P. Lodge was born in Manchester, England, a son of Helen and Arthur S. Lodge. He moved permanently to the United States in 1968. He received his A. B. degree in applied mathematics from Harvard University in 1975. Working under the mentorship of Professor John Schrag at the University of Wisconsin, Madison, Lodge received his Ph.D. in chemistry in 1980. His dissertation was titled, “Oscillatory Flow Birefringence of Dilute Polymer Solutions: Concentration Dependence and High Frequency Behavior.” Upon graduation, Lodge collaborated with Dr. Charles Han as a National Research Council Postdoctoral Associate at the National Bureau of Standards (now the National Institute of Standards and Technology). Lodge and his wife have two children.

Contributions to polymer science

Lodge is internationally recognized for his seminal contributions in numerous areas of polymer science. The focus of his work has been on achieving a molecular-level understanding of polymer structure and dynamics in multicomponent systems and mixtures, and to understand how these are affected by the thermodynamic interactions amongst the components.

Polymer chain dynamics: Lodge's early work focused on the chain dynamics of polymers in solution and in miscible blends. In particular, Lodge and McLeish (2000) discussed the effect of local composition on the dynamics of polymers in a miscible blend. Their model was based on two simple assumptions. First, that dynamic heterogeneity occurs over a length scale on the order of a Kuhn length of the chain. Second, that each polymer in the blend experiences a ‘self-concentration’ that is higher than the bulk (average) composition, due to chain connectivity over this length scale. The impact is that the local dynamics of the two polymers in the blend may exhibit different dependencies on temperature and overall composition due to differences in local composition. This leads to a breakdown in time-temperature superposition, and the appearance of two distinct glass transition temperatures in the mixture.

Block copolymer solutions: Lodge's research group has maintained long-standing interest in the self-assembly of block copolymers in solutions. Studying the phase behavior of polystyrene-block-polyisoprene in solvents of varying selectivity, the concept of phase trajectories was introduced to explain the phase sequences observed as a function of concentration in neutral and selective solvents connecting the solution behavior to that seen in block copolymer melts. From this foundation, the thermodynamics and kinetics of polymorphic order-order transitions were investigated. One paper of note demonstrated the thermoreversible, epitaxial face-centered cubic to body-centered cubic transition in highly ordered, micellar block copolymer solutions and its similarity to transitions observed in atomic systems (e.g. metals and alloys) supporting the general nature of the occurrence of this phase transition in materials.

Miktoarm Star Polymers: In 2004, Lodge published the seminal paper on the self-assembly of miktoarm star terpolymers in solution; a paper that has been cited over 600 times. Using ABC miktoarm star polymers the first example of multicomponent block copolymer micelles was shown, driven by the mutual incompatibility of the hydrophilic A and hydrophobic B and C blocks. In a subsequent paper the simultaneous, segregated storage of two different chromophores in the different micelle domains was demonstrated, offering potential for use in chemical delivery in fields such as pharmaceuticals, personal care products, and foodstuffs.

Polymers in Ionic Liquids: Lodge's recent work has focused on the self-assembly of block copolymers in ionic liquids. Ionic liquids are considered by many to be “green” solvents due to their vanishing vapor pressure, fire resistance, as well as their excellent chemical and thermal stability over wide temperature ranges. Besides elucidating the assembly properties of block copolymers in ionic liquids, Lodge has used these materials to produce molecular shuttles, gas separation membranes, and ion gel gate dielectrics for use in polymer thin film transistors.

Education in Polymer Science: Lodge is a co-author of Polymer Chemistry, 2nd Edition, written with Paul Hiemenz (2007). In 2012 he was elected to the University of Minnesota Academy of Distinguished Teachers, and he received the Postbaccalaureate, Graduate, and Professional Education Award.

Lodge is the co-holder of four patents.

Awards, honors, and professional service

For his research and education efforts, Lodge has received numerous awards including:

• 1993 Institute of Technology George Taylor Distinguished Research Award
• 1993 Fellow of the American Physical Society
• 1994, 2002 National Science Foundation Special Creativity Award
• 1994 Fellow of the Humphrey Institute Policy Forum, 1994-95
• 1998 Arthur K. Doolittle Award, American Chemical Society
• 1999 EPSRC Visiting Fellow, University of Leeds
• 2004 American Physical Society Polymer Physics Prize
• 2004 Paul Flory Polymer Research Award, POLYCHAR
• 2007 Nelson W. Taylor Award in Materials Science, Penn State University
• 2007–2011 Lloyd H. Reyerson Professor of Chemistry
• 2009 Fellow of the American Association for the Advancement of Science
• 2009 International Scientist Award, Society of Polymer Science Japan
• 2010 Award in Polymer Chemistry, American Chemical Society
• 2010 Fellow of the American Chemical Society
• 2012 Elected to University of Minnesota Academy of Distinguished Teachers
• 2015 Herman F. Mark Award
• 2016 Elected to American Academy of Arts and Sciences

Lodge has been a Visiting Professor at the University of California, Santa Barbara (1991-2, Chemical Engineering), University of Mainz, Germany (1998, Institute for Physical Chemistry) and Kyoto University (1985; 1992; 1994, Department of Polymer Chemistry)

Since 2005, Lodge has been the director of the NSF-funded Materials Research Science and Engineering Center at Minnesota. The Center currently focuses on materials development in: (1) Engineered Multiblock Polymers, (2) Organic Optoelectronic Interfaces, (3) Magnetic Heterostructures, and (4) Nanoparticle-based Materials.

Lodge has served the broader scientific community as the Editor-in-Chief for the American Chemical Society journals Macromolecules and ACS Macro Letters. He has served as Chair Elect, Vice Chair, Chair (1995-1998) and Councilor (2001-2006) for the American Physical Society Division of Polymer Physics.

References

1. ^ "Department of Chemistry". Chem.umn.edu. 2013-06-14. Retrieved 2015-03-10.
2. "University of Minnesota: Scholars Walk". Scholarswalk.umn.edu. 2015-01-23. Retrieved 2015-03-10.
3. ^ "Chemistry Faculty Profile Timothy P. Lodge". University of Minnesota. Retrieved 7 November 2015.
4. Lodge, Timothy P.; McLeish, Thomas C. B. (2000). "Self-Concentrations and Effective Glass Transition Temperatures in Polymer Blends". Macromolecules. 33 (14). American Chemical Society (ACS): 5278–5284. Bibcode:2000MaMol..33.5278L. doi:10.1021/ma9921706. ISSN 0024-9297.
5. Haley, Jeffrey C.; Lodge, Timothy P. (2004-06-01). "Failure of time-temperature superposition in dilute miscible polymer blends". Colloid & Polymer Science. 282 (8). Springer Science and Business Media LLC: 793–801. doi:10.1007/s00396-004-1092-5. ISSN 0303-402X. S2CID 96272557.
6. Savin, Daniel A.; Larson, Anne M.; Lodge, Timothy P. (2004). "Effect of composition on the width of the calorimetric glass transition in polymer-solvent and solvent-solvent mixtures". Journal of Polymer Science Part B: Polymer Physics. 42 (7). Wiley: 1155–1163. Bibcode:2004JPoSB..42.1155S. doi:10.1002/polb.10776. ISSN 0887-6266.
7. ^ Hanley, Kenneth J.; Lodge, Timothy P. (1998). "Effect of dilution on a block copolymer in the complex phase window". Journal of Polymer Science Part B: Polymer Physics. 36 (17). Wiley: 3101–3113. Bibcode:1998JPoSB..36.3101H. doi:10.1002/(sici)1099-0488(199812)36:17<3101::aid-polb10>3.0.co;2-x. ISSN 0887-6266.
8. Hanley, Kenneth J.; Lodge, Timothy P.; Huang, Ching-I (2000). "Phase Behavior of a Block Copolymer in Solvents of Varying Selectivity" (PDF). Macromolecules. 33 (16). American Chemical Society (ACS): 5918–5931. Bibcode:2000MaMol..33.5918H. doi:10.1021/ma000318b. ISSN 0024-9297.
9. Lodge, Timothy P.; Pudil, Bryant; Hanley, Kenneth J. (2002). "The Full Phase Behavior for Block Copolymers in Solvents of Varying Selectivity". Macromolecules. 35 (12). American Chemical Society (ACS): 4707–4717. Bibcode:2002MaMol..35.4707L. doi:10.1021/ma0200975. ISSN 0024-9297.
10. Bang, Joona; Lodge, Timothy P. (2003). "Mechanisms and Epitaxial Relationships between Close-Packed and BCC Lattices in Block Copolymer Solutions". The Journal of Physical Chemistry B. 107 (44). American Chemical Society (ACS): 12071–12081. doi:10.1021/jp035065d. ISSN 1520-6106.
11. Lodge, Timothy P.; Bang, Joona; Park, Moon Jeong; Char, Kookheon (2004-04-06). "Origin of the Thermoreversible fcc-bcc Transition in Block Copolymer Solutions". Physical Review Letters. 92 (14). American Physical Society (APS): 145501. Bibcode:2004PhRvL..92n5501L. doi:10.1103/physrevlett.92.145501. hdl:10371/5851. ISSN 0031-9007. PMID 15089548.
12. Park, Moon Jeong; Bang, Joona; Harada, Tamotsu; Char, Kookheon; Lodge, Timothy P. (2004). "Epitaxial Transitions among FCC, HCP, BCC, and Cylinder Phases in a Block Copolymer Solution". Macromolecules. 37 (24). American Chemical Society (ACS): 9064–9075. Bibcode:2004MaMol..37.9064P. doi:10.1021/ma049285g. ISSN 0024-9297.
13. Park, Moon Jeong; Char, Kookheon; Bang, Joona; Lodge, Timothy P. (2005). "Interplay between Cubic and Hexagonal Phases in Block Copolymer Solutions". Langmuir. 21 (4). American Chemical Society (ACS): 1403–1411. doi:10.1021/la048056k. ISSN 0743-7463. PMID 15697287.
14. Wang, Chia-Ying; Lodge, Timothy P. (2002). "Kinetics and Mechanisms for the Cylinder-to-Gyroid Transition in a Block Copolymer Solution". Macromolecules. 35 (18). American Chemical Society (ACS): 6997–7006. Bibcode:2002MaMol..35.6997W. doi:10.1021/ma0205212. ISSN 0024-9297.
15. Bang, Joona; Lodge, Timothy P.; Wang, Xiaohui; Brinker, Kristin L.; Burghardt, Wesley R. (2002-10-31). "Thermoreversible, Epitaxial fcc↔bcc Transitions in Block Copolymer Solutions". Physical Review Letters. 89 (21). American Physical Society (APS): 215505. doi:10.1103/physrevlett.89.215505. ISSN 0031-9007. PMID 12443427.
16. Li, Z.; Kesselman, E.; Talmon, Y.; Hillmyer, M. A.; Lodge, T. P. (2004-10-01). "Multicompartment Micelles from ABC Miktoarm Stars in Water". Science. 306 (5693). American Association for the Advancement of Science (AAAS): 98–101. Bibcode:2004Sci...306...98L. doi:10.1126/science.1103350. ISSN 0036-8075. PMID 15459387. S2CID 262629683.
17. Li, Zhibo; Hillmyer, Marc A.; Lodge, Timothy P. (2006). "Morphologies of Multicompartment Micelles Formed by ABC Miktoarm Star Terpolymers". Langmuir. 22 (22). American Chemical Society (ACS): 9409–9417. doi:10.1021/la0620051. ISSN 0743-7463. PMID 17042562.
18. Lodge, Timothy P.; Rasdal, April; Li, Zhibo; Hillmyer, Marc A. (2005). "Simultaneous, Segregated Storage of Two Agents in a Multicompartment Micelle". Journal of the American Chemical Society. 127 (50). American Chemical Society (ACS): 17608–17609. doi:10.1021/ja056841t. ISSN 0002-7863. PMID 16351082.
19. Lodge, T. P. (2008-07-04). "Materials Science: A Unique Platform for Materials Design". Science. 321 (5885). American Association for the Advancement of Science (AAAS): 50–51. doi:10.1126/science.1159652. ISSN 0036-8075. PMID 18599764. S2CID 206513712.
20. He, Yiyong; Li, Zhibo; Simone, Peter; Lodge, Timothy P. (2006). "Self-Assembly of Block Copolymer Micelles in an Ionic Liquid". Journal of the American Chemical Society. 128 (8). American Chemical Society (ACS): 2745–2750. doi:10.1021/ja058091t. ISSN 0002-7863. PMID 16492063.
21. He, Yiyong; Lodge, Timothy P. (2006). "The Micellar Shuttle: Thermoreversible, Intact Transfer of Block Copolymer Micelles between an Ionic Liquid and Water". Journal of the American Chemical Society. 128 (39). American Chemical Society (ACS): 12666–12667. doi:10.1021/ja0655587. ISSN 0002-7863. PMID 17002358.
22. Gu, Yuanyan; Lodge, Timothy P. (2011-04-12). "Synthesis and Gas Separation Performance of Triblock Copolymer Ion Gels with a Polymerized Ionic Liquid Mid-Block". Macromolecules. 44 (7). American Chemical Society (ACS): 1732–1736. Bibcode:2011MaMol..44.1732G. doi:10.1021/ma2001838. ISSN 0024-9297.
23. Cho, J. H.; Lee, J.; He, Y.; Kim, B. S.; Lodge, T. P.; Frisbie, C. D. (2008-02-18). "High-Capacitance Ion Gel Gate Dielectrics with Faster Polarization Response Times for Organic Thin Film Transistors". Advanced Materials. 20 (4). Wiley: 686–690. Bibcode:2008AdM....20..686C. doi:10.1002/adma.200701069. ISSN 0935-9648. S2CID 95210522.
24. Cho, Jeong Ho; Lee, Jiyoul; Xia, Yu; Kim, BongSoo; He, Yiyong; Renn, Michael J.; Lodge, Timothy P.; Daniel Frisbie, C. (2008-10-19). "Printable ion-gel gate dielectrics for low-voltage polymer thin-film transistors on plastic". Nature Materials. 7 (11). Springer Science and Business Media LLC: 900–906. Bibcode:2008NatMa...7..900C. doi:10.1038/nmat2291. ISSN 1476-1122. PMID 18931674.
25. Lee, Jiyoul; Panzer, Matthew J.; He, Yiyong; Lodge, Timothy P.; Frisbie, C. Daniel (2007). "Ion Gel Gated Polymer Thin-Film Transistors". Journal of the American Chemical Society. 129 (15). American Chemical Society (ACS): 4532–4533. doi:10.1021/ja070875e. ISSN 0002-7863. PMID 17381097.
26. He, Yiyong; Boswell, Paul G.; Bühlmann, Philippe; Lodge, Timothy P. (2007). "Ion Gels by Self-Assembly of a Triblock Copolymer in an Ionic Liquid†". The Journal of Physical Chemistry B. 111 (18). American Chemical Society (ACS): 4645–4652. doi:10.1021/jp064574n. ISSN 1520-6106. PMID 17474692.
27. "Patents by Inventor Timothy P. Lodge". Justia. Retrieved 7 November 2015.
28. ^ "Tim Lodge Regents Professor". Regents of the University of Minnesota. Retrieved 7 November 2015.
29. "APS Fellow Archive". Aps.org. 2013-04-16. Retrieved 2015-03-10.
30. "Arthur K. Dolittle Award - Polymeric Materials: Science and Engineering Division". Pmse.sites.acs.org. Retrieved 2015-03-10.
31. "Prize Recipient". Aps.org. 2013-04-16. Retrieved 2015-03-10.
32. "Chemistry International - Newsmagazine for IUPAC". Iupac.org. Retrieved 2015-03-10.
33. "Editor Profile ACS Publications". ACS Publications. Retrieved 7 November 2015.
34. "Fellows | AAAS MemberCentral". Membercentral.aaas.org. Archived from the original on 2014-07-27. Retrieved 2015-03-10.
35. "American Chemical Society". Webapps.acs.org. Archived from the original on 2014-12-11. Retrieved 2015-03-10.
36. "2010 ACS Fellows | August 2, 2010 Issue - Vol. 88 Issue 31 | Chemical & Engineering News". Cen.acs.org. 2010-08-02. Retrieved 2015-03-10.
37. "Membership of the Academy of Distinguished Teachers" (PDF). Adt.umn.edu. Retrieved 2015-03-10.
38. "2015 Herman F. Mark Award Winner: Timothy P. Lodge". American Chemical Society. Retrieved 7 November 2015.
39. "Press Releases - American Academy of Arts & Sciences".
40. "Lodge to lead Materials Research Science and Engineering Center (MRSEC) : College of Science & Engineering : University of Minnesota, Twin Cities". Cse.umn.edu. Archived from the original on 2015-04-02. Retrieved 2015-03-10.

External links

• Research.cems.umn.edu
• Mrsec.umn.edu
• Pubs.ac.org
• Pubs.acs.org

• 1954 births
• Living people
• 21st-century American chemists
• Harvard University alumni
• University of Wisconsin–Madison College of Letters and Science alumni
• University of Minnesota faculty
• Minnesota CEMS
• Fellows of the American Physical Society