Dr. Duane B. Priddy

Priddy & Associates LLC

6004 Camelot Ct.
Midland MI, 48640

Short Description:
EW #8254 has over 30 years experience as a scientist in Dow Plastics. He is globally recognized as a plastics expert.
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Globally recognized expert in Plastics
Rheology of plastics/plasticization
Plastic additives (antistats, antioxidants, fire retardants, mold release agents, etc.)
Development of plastics for special applications
Organic peroxides (use, storage and handling, loss prevention, and manufacture)
Loss prevention in plastic manufacturing plants
Analysis/testing of plastics
Plastic films/foams
Plastic failure mechanisms
Toughening of plastics
Transparent impact resistant plastics for clear packaging/film applications
Pioneered and led team that developed a new series of advanced high impact polystyrenes (STYRON-A-TECH)
Pioneered living free-radical polymerization
Invented new low-cost process to make new transparent impact modified plastics
Invented new initiator to make styrenic plastics at faster rates
Developed model for polymer degradation resulting in faster product development
Invented environmentally degradable plastic film/foam
Developed weatherable plastics
Developed an understanding of the discoloration chemistry of plastics
Led team to develop the Dow Polycarbonate (CALIBRE) product/process
Expert in polymer stabilization/degradation
Led team that developed ABS/PC blends (PULSE) for automotive applications
Pioneered GPC/UV analysis of plastics as a tool to determine degradation chemistry

Ph.D. Organic Chemistry - 1971 - Michigan State University
BA Chemistry - 1966 - Olivet College, Olivet, MI

65 Issued United States Patents
100 Publications including 5 encyclopedia articles and 8 book chapters
Author/Editor of book Modern Styrenic Polymers Wiley 2003
200 internal Dow Research Reports

Chief Scientist, Dow Plastics: 1985-2002
Research Scientist, Polycarbonate R&D: 1983-85
Senior Research Leader, Styrenic Polymers R&D: 1972-83
Research Chemist, Organic Chemicals R&D 1966-68; 1970-72

Adjunct Professor at Michigan Technological University - 1991-present
Adjunct Professor at Central Michigan University - 1993 - present
External Advisory Committee: Colorado School of Mines - 1997 - present
Dissertation advisor for Ph.D. students (Michigan Tech. and Colorado School of Mines)
Thesis advisor for graduate students (Central Michigan University)
Presented > 20 papers at national and local professional society meetings
Presented lectures at several universities and colleges including University of Akron, Central Michigan University, University of Michigan, University of Kansas, University of Florida, Michigan Technological University, Carnegie Mellon University, Oberlin College, and Olivet College

Awarded Lifetime Achievement Award by Dow Plastics 2001
Awarded National American Chemical Society (ACS) PMSE Fellowship 2001
Industrial Advisor to Executive Board of National ACS POLY Div. 1999 to 2002
Invited Keynote speaker for ACS "Chemistry in Industry Conference" September 2004
Elected Chairman of Dow Global Plastics Scientists Organization 1996
Member Editorial Advisory Board - Designed Monomers and Polymers Journal 1996 to present
Member National ACS POLY Division Program Committee 1996 to present
Awarded ACS Midland Section Award for Outstanding Achievement in the Chemical Sciences 1995
Member of POLY, PMSE, and Business Management Divisions of ACS

Selected Publications:
1) Assessment of the thermal degradation characteristics of isomeric polystyrenes using TG, TG/MS and TG/GC/MS. Thermochimica Acta (2003), 396(1-2), 167-177.
2) Utility/limitations of nitroxide mediated polymerization for low cost manufacture of improved styrenic polymers. ACS Polymer Preprints (2002), 43(2), 102-103.
3) Characterization of phase partitioning of additives in rubber modified plastics. Annual Technical Conference - Society of Plastics Engineers (2002), 60th(Vol. 2), 2030-2034.
4)Impact of the presence of acid on the thermal decomposition of the styrene dimer mimics, 1,2,3,10a-tetrahydrophenanthrene-1,2-dicarboxylic anhydride and 2,3,4,4a-tetrahydrophenanthrene-3,4-dicarboxylic anhydride. ACS Polymer Preprints (2002), 43(1), 384-385.
5)The impact of the presence of head-to-head units on the thermal stability of polystyrene. ACS Polymer Preprints (2002), 43(1), 360-361.
6) Assessment of the thermal degradation characteristics of isomeric poly(styrene)s using TG, TG/MS, and TG/GC/MS. Proceedings of the NATAS Annual Conference on Thermal Analysis and Applications (2001), 29th 780-786.
7) Catalytic reduction of residual styrene monomer in polystyrene. Journal of Applied Polymer Science (2002), 83(8), 1786-1791.
8) Analysis of the phase partitioning of additives in rubber-modified plastics. Journal of Applied Polymer Science (2001), 82(8), 1963-1970.
9) Thermal decomposition characteristics of structurally diverse polystyrenes. Proceedings of the NATAS Annual Conference on Thermal Analysis and Applications (2000), 28th 279-282.
10) Thermal decomposition of cycloadducts of vinylnaphthalenes with electron-deficient dienophiles. Proceedings of the NATAS Annual Conference on Thermal Analysis and Applications (2000), 28th 263-268.
11) Thermal decomposition of 2,2,6,6-tetramethyl-1-(1-phenethyloxy) piperidine. Thermochimica Acta (1999), 340-341 279-283.
12)Facile side-chain functionalization of polybutadiene and its use to prepare graft copolymers. ACS Polymer Preprints (1999), 40(2), 75-76.
13) Application of mediated radical polymerization to enhance grafting of polystyrene onto polybutadiene. ACS Polymer Preprints (1999), 40(2), 73-74.
14) Five authentic diradicals fail to initiate vinyl polymerization. Polymer Bulletin (Berlin) (1997), 39(1), 37-43.
15)Approaches to branched polystyrene using bulk free-radical polymerization. Journal of Applied Polymer Science (1997), 64(4), 683-687.
16)Photodegradable polystyrene foam. Polymer News (1995), 20(2), 43-46.
17)A powerful tool for polymer analysis. Materials Engineering (New York, NY, United States) (1995), 9 629-48.
18)Thermal discoloration chemistry of styrene-co-acrylonitrile. Advances in Polymer Science (1995), 121, 123-54.
19)Permanence of polymer stabilizers in hostile environments. Journal of Applied Polymer Science (1994), 54(11), 1605-12.
20)Modeling Photodegradation in Transparent Polymers. Macromolecules (1994), 27(26), 7621-9.
21)Recent advances in styrene polymerization. Advances in Polymer Science (1994), 111(Polymer Synthesis), 67-114.
22)Gel permeation chromatography-UV spectroscopy: a powerful tool for polymer analysis. Annual Technical Conference - Society of Plastics Engineers (1992), 50th(Vol. 1), 1166-8.
23) Thermal styrene-co-acrylonitrile discoloration problem: the role of sequence distribution and oligomers. Macromolecules (1993), 26(22), 6068-75.
24)Cycloalkane perketal initiators for styrene polymerization. 1. Decomposition chemistry of 1,1-bis(tert-butylperoxy)cyclohexane. Macromolecules (1993), 26(9), 2246-52.
25)Development of photodegradable polystyrene foam. Polymeric Materials Science and Engineering (1992), 67 188-9.
26) Development of continuous anionic styrene polymerization technology. Journal of Polymer Engineering (1991), 10(4), 333-44.
27)Acid-containing styrenic polymers and polycarbonate alloys. Advances in Polymer Blends and Alloys Technology (1992), 3 92-100
28)Photodegradable polystyrene. Part I. Enhancing the photodegradability of polystyrene by the addition of photosensitizers. Polymer Degradation and Stability (1992), 38(2), 113-18.
29)Facile measurement of phenolic end-groups in bisphenol A polycarbonate using gel permeation chromatography-UV analysis. Journal of Applied Polymer Science (1992), 45(3), 435-42.
30)Photodegradation of ethylene-propylene copolymer and ethylene-propylene-ethylidenenorbornene terpolymer. Journal of Applied Polymer Science (1991), 42(1), 21-33.
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