1,2-Bis(4-trimellitimidophenoxy)benzene으로 부터 유도된 신규 방향족 폴리아미드이미드

• 영문명: Noble Aromatic Poly(amide-imide)s Derived from 1,2-Bis(4-trimellitimidophenoxy)benzene
• 발행기관: 한국응용과학기술학회 (구.한국유화학회)
• 저자명: 정화진(Hwa Jin Jeong)
• 간행물 정보: 『한국응용과학기술학회지』한국유화학회지 제27권 제2호, 129~136쪽, 전체 8쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2009.06.30

영문 초록

A series of noble poly(amide-imide)s and copoly(amide-imide)s bearing 1,2-bis(4-phenoxy)benzene units were synthesized by the direct polycondensation of 1,2-bis(4-trimellitimidophenoxy)benzene[1,2-PTPB] with a combination of commercially available aromatic diamines and diacids such as m-phenylene diamine, p-phenylene diamine(PPD), isophthalic acid and terephthalic acid(TA) in N-methyl-2-pyrrolidone(NMP) using triphenyl phosphite and pyridine as a condensing agent in the presence of dehydrating agent (CaCl2). The resulting polymers had inherent viscosities in the range of 0.37∼0.78 dL/g and most of them were soluble in common organic solvents including NMP, dimethylacetamide, dimethylsulfoxide, dimethylformamide, and m-cresol. Wide-angle X-ray diffractograms revealed that the copoly(amide-imide) derived from PPD with mixed acids of 1,2-BTPB and TA, showed crystalline nature, whereas all of the other polymers were found to be amorphous. The glass transition temperatures of the polymers occurred over the temperature range of 270～323°C in their differential scanning calorimetry curves and their 10% weight loss temperature, determined by thermogravimetric analysis in air and nitrogen atmosphere, were in the range 465～535°C, 500～550°C, respectively, indicating their good thermal stability.

목차

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참고문헌

키워드

Poly(amide-imide)s 1,2-bis(4-phenoxy)benzene Units Solubility Thermal Properties