An increasing trend of PA6 and CoPAs was observed in Figure 6 and all points are relatively consistent with the onset melting temperature of CoPA HTs ( Table 1 ), which means the hydrogen-bonded carbonyl group is destroyed when the main chain can move.
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Copolymerization-Regulated Hydrogen Bonds: A New Routine for High-Strength Copolyamide 6/66 Fibers.
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