INVESTIGATION OF THE STRUCTURE OF ACETYLENE-TERMINATED POLYIMIDE RESINS USING MAGIC-ANGLE C-13 NUCLEAR MAGNETIC-RESONANCE

被引：107

作者：

SEFCIK, MD ^{[1
]}

STEJSKAL, EO ^{[1
]}

MCKAY, RA ^{[1
]}

SCHAEFER, J ^{[1
]}

机构：

[1] MONSANTO CO,CORP RES LABS,ST LOUIS,MO 63166

来源：

MACROMOLECULES | 1979年 / 12卷 / 03期

关键词：

D O I：

10.1021/ma60069a015

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Magic-angle cross-polarization 13C-NMR spectra have been obtained of the prepolymeric, cured, and postcured versions of an acetylene-terminated polyimide resin. Analysis of the differences between the spectra establishes that all acetylenic functionality is lost by prolonged curing and that not more than 30% of the acetylenic end groups undergo cyclotrimerization in the cross-linking process. © 1979, American Chemical Society. All rights reserved.

引用

页码：423 / 425

页数：3

共 17 条

[1]

ANDREW ER, 1958, NATURE LONDON, V182, P1059

[2]

BILOW N, 1975, Patent No. 3879349

[3]

BILOW N, 1978, POLYM PREPR AM CHEM, V19, P23

[4]

Cook OW, 1921, J AM CHEM SOC, V43, P334, DOI 10.1021/ja01435a011

[5] ACETYLENIC AMINES .12. SOME NEW REACTIONS OF ACYLAMINOACETYLENES [J].

EASTON, NR ;

CASSADY, DR ;

DILLARD, RD .

JOURNAL OF ORGANIC CHEMISTRY, 1965, 30 (09) :3084-&

[6]

JOHNSON LF, 1972, CARBON 13 NMR SPECTR, P7

[7]

Landis A.L., 1974, AM CHEM SOC POLYM PR, P537

[8] INTRAMOLECULAR CATALYSIS IN ADDITION OF CARBOXYL TO CARBON-CARBON TRIPLE BONDS [J].

LETSINGE.RL ;

OFTEDAHL, EN ;

NAZY, JR .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1965, 87 (04) :742-+

[9]

Nieuwland J.A., 1945, CHEM ACETYLENE

[10]

NIEUWLAND JA, 1969, CHEM ACETYLENES

← 1 2 →