One-Pot Synthesis of Amide-Functional Main-Chain Polybenzoxazine Precursors

被引：20
作者：
Durukan, Canan [1 ]
Kiskan, Baris [1 ]
Yagci, Yusuf [1 ]
机构：
[1] Istanbul Tech Univ, Dept Chem, TR-34469 Istanbul, Turkey
来源：
POLYMERS | 2019年 / 11卷 / 04期
关键词：
polybenzoxazine; benzoxazine; polyamide; ring-opening polymerization; dihydrocoumarine; RING-OPENING POLYMERIZATION; BENZOXAZINE MONOMERS; THERMAL POLYMERIZATION; THERMOSETS; 1,3-BENZOXAZINES; MECHANISM; DESIGN; ETHER; CURE;
D O I：
10.3390/polym11040679
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Main-chain polybenzoxazines containing amide linkages were successfully prepared in one pot. Three different polymers were synthesized by reacting 3,4-dihydrocoumarine (DHC) and paraformaldehyde with 1,3-diaminopropane or 1,6-diaminohexane or Jeffamine ED-900. The one-pot reaction proceeded through the combination of the ring-opening of DHC with amines, and subsequent Mannich and ring-closure reactions occurring in a cascading manner. The obtained polymer from Jeffamine exhibited good film-forming properties, and free-standing flexible films were easily solvent- casted on Teflon plates. All polymeric precursors were characterized by spectroscopic analysis, and their curing behavior and thermal stability were investigated by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA).
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页数：11
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