By Sabu Thomas, Deepalekshmi Ponnamma, Ajesh K. Zachariah
This ebook offers with the polymers, various equipment of synthesis, and synthesis of composites, in addition to the various innovations used for polymer characterization. lots of the world’s industries extract the anomalous houses of polymers to make very good budget friendly fabrics. due to this, the categories of polymers, their processing, and the research in their numerous homes are very major. Readers will achieve an intensive wisdom in regards to the processing of alternative sorts of polymers and composites made of them, in addition to their quite a few functions. compatible for school room use yet particularly vital for researchers, this e-book addresses:
- Adhesion of amorphous polymers with vitrified bulk and floor glass transition
- Functionalized biopolymers and their applications
- A new synthesis of p-Cresol-Adipamide-Formaldehyde copolymer resin and its purposes as an ion-changer
- Correlating functionality of industrial viscosity modifiers for formulating shear sturdy commercial lubricants
- Synthesis of phthalonitrile polymers in ionic liquid and microwave media
- Studies on nanocomposite polymer electrolytes doped with Ca3(PO4)2 for lithium batteries
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Extra resources for Polymer Processing and Characterization
The p-CAF-I copolymer which has been used in the present investigation was prepared by the reaction given in Figure 1. The details of synthesis of copolymer along with color, melting point, yield and elemental analysis are incorporated in Table 2. Chelating Ion-exchange Properties of Copolymer Resins 19 Scheme 1. Synthesis of representative p-CAF-I copolymer resin. Figure 1. The SEM of p-CAF-I copolymer resin. 031%. , 2006). C (2) where C = concentration in g/100 ml. ηr = the ratio between viscosity of solution [η] and viscosity of the solvent [η0] is known as relative viscosity ηr = η/η0 ηsp= this function has been derived from relative viscosity and given by ηsp= (η – η0)/η0 = η/η0 – 1 = ηr – 1 [η] = it is intrinsic viscosity obtained by extrapolating a plot of ηsp/C or in ηr/C against concentration.
2006). C (2) where C = concentration in g/100 ml. ηr = the ratio between viscosity of solution [η] and viscosity of the solvent [η0] is known as relative viscosity ηr = η/η0 ηsp= this function has been derived from relative viscosity and given by ηsp= (η – η0)/η0 = η/η0 – 1 = ηr – 1 [η] = it is intrinsic viscosity obtained by extrapolating a plot of ηsp/C or in ηr/C against concentration. [η] = lim ( ηsp/C). The intrinsic viscosity is characteristics C→0 parameter of a polymer. According to above relations, the plots of ηsp/C and ln ηr/C against concentration was linear with slopes K1 and K2 respectively (Figure 2).
23(δ) ppm are attributed to protons and -NH Bridge. 98 (δ) ppm may be due to terminal methylene group. 92 (δ) ppm may be due to phenolic hydroxy protons. , 2008). 21 (δ) ppm may due to -CH3-C ≡ moiety. 35 (δ) ppm may due to CH2-Ná moiety. 20(δ) ppm may due to >CH-O group. 31 (δ) ppm may due to aromatic proton (Ar-H). Table 5. The 1H NMR spectral data of p-CAF copolymer resins. 00 24 Polymer Processing and Characterization Table 5. 50 Scanning Electron Microscopy (SEM) Figure 1 shows the SEM (Suzuki, 2002) micrographs of the pure p-CAF-I copolymer sample at 1500X and 3000X magnification (particle size is 20 µm).