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 Expert  108280

Expert in Physical Polymer Science, Ion-containing Polymers; Dielectric Properties, Polyurethanes

Available for your Consulting and Expert Witness Needs

Pennsylvania (PA)
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness

Summary of Expertise: Listed with other top experts in: 
For over 30 years, Expert has been actively involved in the teaching and research of crystalline polymers. His focus has varied over time, but includes microstructure determination, crystallinity, crystal growth, mechanical properties, and general structure-property relationships. Specific systems considered include polyethylene, polyoxymethylene (polyacetal), polyesters and copolyesters (polybutylene terephthalate), crystalline blends, and others.


crystalline polymer


crystalline-polymer structure-property relationship


polymer crystallinity

Expert has been actively involved in teaching and research in multicomponent polymer systems, particularly those containing crystalline polymers. His particular topics of interest include amorphous phase behavior (i.e. miscibility/immiscibility), crystallization and melting, and microstructure. A large number of techniques have been brought to bear on these problems, including dielectric thermal analysis, microscopy, and scattering techniques (e.g. x-ray). He also has taught a two-day workshop in this area at several companies.

polymer blend


polymer blending


polymer alloy

Expert has been exploring the properties and performance of polyurethanes and poly(ether urethaneureas) for use in cardiac assist and other biomedical devices. Specifically, his focus has been on the design and characterization of new comb polymers with improved barrier properties; the influence of molecular architecture on mechanical (e.g. fatigue crack propagation resistance) and other properties of PEUU's; and the relationship between microphase-separated structure. In a separate program, Expert has also explored the structure and properties of ultra high molecular weight polyethylene (UHMWPE) used in orthopedic devices.

medical polymer

For a number of years Expert has been interested in structure-property relationships of electroactive polymer composites. Early work in this area centered on the piezo- and pyroelectric character of polymer-electroceramic composites while more recently the emphasis has been on polymer conductor (carbon black, metal oxides, etc.) mixtures, particularly on the origin of the large PTC effects observed in such systems.

electrically active polymer composite

Expert has extensive experience in the application of a wide variety of thermal analysis techniques to polymers and polymer composites (including polymer blends and block copolymers). His primary emphasis has been in using dielectric thermal analysis, differential scanning calorimetry (DSC), and dynamic mechanical thermal analysis (DMTA). His areas of study have generally included dielectric properties of polymers and polymer blends and melting and crystallization via DSC. He also has taught various short courses in this area.

thermal analysis


dielectric thermal analysis


polymer thermal analysis


differential-scanning calorimetry

Show Secondary and Basic Areas of Expertise
Expert may consult nationally and internationally, and is also local to the following cities: Lancaster, Pennsylvania;  and Frederick, Maryland.

Often requested
with this expert:

Biomaterials and Product Development R&D for Orthopedic,...
Adhesives, Encapsulation: Electrical/ Electronic, and...
Adhesive Consulting, Formulating, & Research in Structural,...
Plastics and Polymer Additives

Year   Degree   Subject   Institution   Honors
1979   Ph.D.   Solid State Science (Polymer Science)   Penn State University   Eastman Kodak and Graduate School Fellow
1975   B.S.   Materials Science and Engineering (Polymers)   Penn State University   Evan Pugh Scholar

Work History:
Years   Employer   Department   Title   Responsibilities

1993 to


(Undisclosed University)


Department of Materials Science and Engineering


Professor of Polymer Science


Expert is Associate Head for Graduate Studies in the Materials Science and Engineering Department. He is also a faculty member of the PSU Bioengineering Department and associated with the Biomolecular Transport Dynamics option of the PSU Integrated Biosciences Graduate Program.

1993 to 1993


Naval Research Laboratory - Washington, D.C.




ASEE Sabbatical Fellow


Expert was at the Naval Research Laboratory while on sabbatical leave.

1988 to 1994


(Undisclosed University)


Materials Science and Engineering


Program Chair, Polymer Science


1985 to 1993


(Undisclosed University)


Polymer Science


Associate Professor of Polymer Science


1980 to 1985


(Undisclosed University)


Polymer Science


Assistant Professor of Polymer Science


Career Accomplishments:

Expert is a member of the American Chemical Society, the American Physical Society, International Dielectrics Society, the Society for Biomaterials, and Alpha Chi Sigma.

Publications and Patents Summary

He has authored approximately 130 refereed journal articles and book chapters. He is the co-editor of the 1997 ACS Professional Reference Series book entitled "Dielectric Spectroscopy of Polymeric Materials."

Selected Publications and Publishers  
 - Journal of Physical Chemistry  
 - Encyclopedia of Polymer Science and Technology  
 - Biomacromolecules  
 - Journal of Biomedical Materials Research  
 - Macromolecules  

Consulting Services:
Selected Consulting Examples:
  • Expert was a scientific consultant for Hoechst Celanese for about 10 years before their demise. He also taught several courses onsite there. His consulting involved technical reviews, evaluation and advice on research and development projects, etc.
  • He has additional, extensive industrial consulting experience, primarily in the polymers/plastics, adhesives, and biomedical materials/devices industries. Additional details can be provided upon request.
Recent Client Requests:
  • Expert in moisture sealants.
  • Polymer extrusion expert for consulting on improvement of existing polyethylene-based compound.
  • Expert for consulting on encapsulation/ potting resin.
  • Expert in PTC Thermistor to assist with Gold Bonding and yield issues.
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Expert Witness Experience Summary:
Expert has extensive legal consulting and deposition experience, and he has testified in several cases in the U.S. Federal Court system, as well as at the U.K. Royal Courts in London. Details will be provided on request. He has also provided a number of depositions, some lasting as long as three days.
Recent Litigation Client Requests:
  • Expert in Polymers including polychloroprene.
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.

Additional Skills and Services:

He has taught a number of training courses over the years on topics ranging from introductory polymer science and engineering, to polymer blends and block copolymers, to dielectric and mechanical “thermal” analysis.


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