1. Department of Coatings and Polymeric Materials, North Dakota State University, PO Box 6050,
Dept 2510, Fargo, North Dakota 58108-6050, United States
2. Department of Chemistry and Biochemistry, North Dakota State University, PO Box 6050, Dept 2508, Fargo, North Dakota 58108-6050, United States
3. Department of Mechanical Engineering, North Dakota State University, PO Box 6050, Dept 2490, Fargo, North Dakota 58108-6050, United States
4. Combat Capabilities Development Command Army Research Laboratory, Aberdeen, Maryland 21005, United States