Electron beam performance in the novel solventless LDPE–NVP surface grafting system |
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| Institution: | 1. Division of Organic Synthesis, Department of Chemistry, Visva-Bharati University, Bolpur, West Bengal 731 235, India;2. Division of Organic Chemistry, Analytical Section, National Chemical Laboratory, Pune 411 008, India;1. School of Materials Science and Engineering, Tianjin Chengjian University, 300384, Tianjin, China;2. Tianjin SYP Engineering Glass Co. Ltd., 300409, Tianjin, China;3. School of Science, Tianjin Chengjian University, 300384, Tianjin, China;1. Key Laboratory of Advanced Control and Optimization for Chemical Processes of the Ministry of Education, East China University of Science and Technology, Shanghai 200237, China;2. Department of Chemical & Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1R1, Canada;1. Center of Excellence in Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand;2. Department of Chemical Engineering, Faculty of Engineering, Rajamangala University of Technology Krungthep, Bangkok, 10120, Thailand;3. Department of Chemistry, University of Turin, Via P. Giuria 7, 10125, Turin, Italy;4. Dipartimento di Scienza e Tecnologia del Farmaco, and NIS – Centre for Nanostructured Interfaces and Surfaces, University of Turin, Via P. Giuria 9, 10125, Turin, Italy |
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| Abstract: | In this work, solventless grafting of NVP on to LDPE surface was conducted by high-energy electron beam radiation (10 MeV) at dose range 10–200 kGy in absence of solvent. As NVP could not wet LDPE surface, polyvinylpyrrolidone (PVP) (with various k-values and thus various weight percentages) was solved in NVP and then this tacky polymer was used for coating and grafting purposes. The FT–IR spectra showed that the concentration of characteristic bands of the NVP -grafted LDPE increased with increasing radiation dose as well as the percentage of grafting significantly increased up to 32%. Furthermore, hydrophilicity, yield of gel content and topology of NVP-grafted LDPE films and sheets were studied. |
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