Dr. Sperling was a professor emeritus at Lehigh University after teaching at Lehigh for over 45 years. Dr. Sperling was internationally known for his work with polymer materials, and mentored many students and post docs. He was honored as a Fellow of the American Chemical Society in 2010. Les was an avid gardener, cultivating his own grapevines for wine making. He developed prize winning wines in his "Leaky Cork Winery" and published a guidebook for amateur winemakers. He was a wine judge, and served as President American Wine Society Educational Foundation. Les was an active member of the Keneseth Israel Temple. He helped lead the K.I. "Mitzvah Day" program for over 25 years, organizing volunteers to work in hospitals on Christmas day to give employees the morning off to spend with their families. Les Sperling truly relished his work and his family, and lived his life to the fullest. He succumbed to Alzheimer's disease in the end, but his indomitable spirit will live on in those who loved him dearly.

Survivors: Les was married to Caroline (Bonnie) Neill Sperling, whom he met as a graduate student at Duke University, for 58 years. He was a proud parent of two daughters, Reisa Sperling, MD, and Sheri Leigh O'Connor, MFA, and a beloved grandpa to Ryland, Tresten, Aubrey, and Lyra.

Services: Were Held. Arrangements by Bachman, Kulik & Reinsmith Funeral Home, Allentown.

Contributions: In lieu of flowers, the family asks that donations be made to Meals on Wheels of Northampton or Heifer International.