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Synthesis and physico‐mechanical properties of aliphatic polyesteramides
Author(s) -
Castaldo Leonardo,
Candia Francesco De,
Maglio Giovanni,
Palumbo Rosario,
Strazza Giovanni
Publication year - 1982
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1982.070270536
Subject(s) - amorphous solid , materials science , microstructure , condensation polymer , copolymer , glass transition , viscoelasticity , polymer , phase (matter) , composite material , polymer chemistry , chemical engineering , organic chemistry , chemistry , engineering
Random polyesteramides with different chemical compositions and block polyesteramides have been prepared by a two‐step polycondensation method from adipolyl dichloride, 1,10‐decandiol, and 1,6‐diaminohexane. A sample of alternating microstructure has been synthesized by melt polycondensation of 1,10‐decandiol and preformed bisesteramides. The thermal and viscoelastic behavior has been investigated and related to the chemical composition and chain microstructure. The random copolymers exhibit one transition in the crystalline phase, whereas two transitions are shown by the block copolymers. The viscoelastic behavior suggests that in the amorphous component a partial microsegregation of phase occurs, generating an intermediate structure between a monophasic and a biphasic amorphous system.