Viscoelastic behaviour and relaxation modes of one polyamic acid organogel studied by rheometers and dynamic light scattering.
Sign Up to like & getrecommendations! Published in 2017 at "Soft matter"
DOI: 10.1039/c7sm02185b
Abstract: A novel polyamic acid (PAA from BAPMPO-BPDA) organogel was synthesized and characterized via dynamic light scattering (DLS), a classical rheometer, and diffusion wave spectroscopy (DWS). In situ monitoring was performed using a classical rheometer to… read more here.
Keywords: polyamic acid; paa gel; relaxation modes; gel ... See more keywords
Electrospinning of Aqueous Solutions of a Triethylammonium Salt of Polyamic Acid and Properties of the Nonwoven Polyimide Materials
Sign Up to like & getrecommendations! Published in 2020 at "Russian Journal of Applied Chemistry"
DOI: 10.1134/s1070427220010048
Abstract: The electrospinning conditions of aqueous and aqueous-alcoholic solutions of the triethylammonium salt of a polyamic acid derived from pyromellitic dianhydride and 4,4′-diaminodiphenyl ether in the concentration interval 8–15 wt % were studied comprehensively. The best… read more here.
Keywords: triethylammonium salt; polyamic acid; solutions triethylammonium; salt polyamic ... See more keywords
Spectroscopy, Morphology, and Electrochemistry of Electrospun Polyamic Acid Nanofibers
Sign Up to like & getrecommendations! Published in 2021 at "Frontiers in Chemistry"
DOI: 10.3389/fchem.2021.782813
Abstract: Polyamic acid (PAA) nanofibers produced by using the electrospinning method were fully characterized in terms of morphology and spectroscopy. A PAA nanofiber–modified screen-printed carbon electrode was applied to the detection of selected sulfonamides by following… read more here.
Keywords: spectroscopy; paa; electrochemistry; morphology ... See more keywords
Storage Stability of 6FDA-DMB Polyamic Acid Solution Detected by Gel Permeation Chromatography Coupled with Multiple Detectors
Sign Up to like & getrecommendations! Published in 2023 at "Polymers"
DOI: 10.3390/polym15061360
Abstract: Polyamic acid (PAA) is the precursor of polyimide (PI), and its solution’s properties have a direct influence on the final performances of PI resins, films, or fibers. The viscosity loss of a PAA solution over… read more here.
Keywords: dmb; stability; paa; polyamic acid ... See more keywords