高性能液体端羧基氟橡胶的氟化加成反应合成
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姜帆, 李琬桐, 赵树发, 石宁, 张梦霞, 方庆红, 李东翰
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Synthesis of High Performance Carboxyl-terminated Liquid Fluoroelastomers Based on Fluorination Addition Reaction
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JIANG Fan, LI Wantong, ZHAO Shufa, SHI Ning, ZHANG Mengxia, FANG Qinghong, LI Donghan
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表6 CTLF和SCTF中19F-NMR谱中特征峰的归属
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Table 6 Assignments of 19F-NMR peaks in CTLF and SCTF
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| No. | δ / × 10-6 | Assignment |
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| a | -63.46 | -CF2C F2COOH | | b | -70.67 | -CH2CF2CF(C F3)CF2CH2- | | c | -73.71 | -CF2CH=C(C F3)CF2- | | d | -75.19 | -CF2CH2CF(C F3)CF2CF2- | | e | -80.66 | -CH=CFCF(C F3)- | | f | -81.30 | -CF=CHCF(C F3)CF2- | | g | -91.62 | -CF2CH2C F2CH2CF2- | | h | -93.56 | -CF2CH2C F2CH2CF(CF3)- | | i | -95.64 | -CH2CH2C F2CH2CF2- | | j | -103.62 | -CF2CH2C F2CF(CF3)CF2- | | k | -108.96 | -CF(CF3)CH2C F2CF(CF3)CF2- | | l | -110.51 | -CF2CH2C F2CF2CF(CF3)- | | m | -112.53 | -CF(CF3)CH2C F2CF2CH2- | | n | -113.95 | -CF2CH2C F2CF2CH2- | | o | -116.24 | -CH2CH2C F2CF2CF(CF3)- | | p | -118.72 | -CH2CF2C F2CF(CF3)CH2- |
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