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      Influence of Post-Treatment Media on Morphological Changes in Transient Macromolecules of Polymeric Fibers

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      International Polymer Processing

      Carl Hanser Verlag

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          Abstract

          There is a growing literature investigating the effects of thermal annealing and green solvent exposure on the microstructural changes, in general, and transient structures in polyester fibers, in particular, using such techniques as birefringence, differential scanning calorimetry, X-ray diffraction, and dynamic mechanical analysis. The results obtained from these studies consistently indicate that transient structures in polyester fibers strongly depend on the medium used so that treatment in different media produces important changes such as the transformation of the intermediate domain into an amorphous or crystalline region. Compared to polyester samples annealed at high temperatures over long treatment times, those exposed to green solvents yield higher values of crystallinity, orientation, density, transient structure, crystallite size in lateral directions, and elastic modulus but lower values of fractional free volume. Being environmentally friendly, green solvents may, thus, be considered as superior replacements for the conventional materials used in thermal annealing, especially because they change the fine structure of polyester fibers over shorter treatment times and at lower temperatures.

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          Most cited references 36

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          Specific Intermolecular Interaction of Carbon Dioxide with Polymers

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            Polymer Crystallization:  Metastable Mesophases and Morphology

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              Observation of a transient structure prior to strain-induced crystallization in poly(ethylene terephthalate)

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                Author and article information

                Journal
                ipp
                International Polymer Processing
                Carl Hanser Verlag
                0930-777X
                2195-8602
                13 August 2019
                : 34
                : 4
                : 388-397
                Affiliations
                1 Department of Textile Design and Printing, Semnan University, Semnan, Iran
                Author notes
                [* ] Correspondence address, Mail address: Somayeh Baseri, Department of Textile Design and Printing, Semnan University, P. O. Box 57111-35351, Semnan, Iran, E-mail: baseri@ 123456semnan.ac.ir
                Article
                IPP3793
                10.3139/217.3793
                © 2019, Carl Hanser Verlag, Munich
                Page count
                References: 43, Pages: 10
                Product
                Self URI (journal page): http://www.hanser-elibrary.com/loi/ipp
                Categories
                Regular Contributed Articles

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