Bibliographic Details
| Title: |
Radiation grafting of N,N′-dimethylacrylamide and N-isopropylacrylamide onto polypropylene films by two-step method |
| Authors: |
Contreras-García, A.1, Burillo, G.1, Aliev, R.1, Bucio, E. ebucio@nucleares.unam.mx |
| Source: |
Radiation Physics & Chemistry. Aug2008, Vol. 77 Issue 8, p936-940. 5p. |
| Subjects: |
Radiation, Acrylamide, Polypropylene, Spectrum analysis |
| Abstract: |
Abstract: Polypropylene (PP) films were modified by the consecutive grafting of N,N′-dimethylacrylamide (DMAAm) and N-isopropylacrylamide (NIPAAm) (two-step method) using preirradiation method with gamma-rays. The effect of absorbed dose, monomer concentration and reaction time on the degree of grafting was determined. The grafted samples were verified by the FTIR-ATR spectroscopy; thermal properties were analyzed by differential scanning calorimetry (DSC) and the stimuli-responsive behavior was studied by swelling and contact angle in water as well as DSC. Thermoresponsive films of (PP-g-DMAAm)-g-NIPAAm presented a lower critical solution temperature (LCST) at 36.5°C. [Copyright &y& Elsevier] |
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| Database: |
Engineering Source |
