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Aluminum-catalyzed statistical copolymerization of mono-, tri- and penta-fluorophenyl glycidyl ether with ethylene oxide and epichlorohydrin
Polymer Chemistry ( IF 4.6 ) Pub Date : 2021-09-06 , DOI: 10.1039/d1py00938a Fang Guo 1 , Ming Deng 1 , Fan Li 1 , Shoulong Chen 1
Polymer Chemistry ( IF 4.6 ) Pub Date : 2021-09-06 , DOI: 10.1039/d1py00938a Fang Guo 1 , Ming Deng 1 , Fan Li 1 , Shoulong Chen 1
Affiliation
The copolymerization of fluorophenyl glycidyl ether (FPGE, including 4-monofluorophenyl glycidyl ether (MFPGE), 3,4,5-trifluorophenyl glycidyl ether (TFPGE) and 2,3,4,5,6-pentafluorophenyl glycidyl ether (PFPGE)) with ethylene oxide (EO) and epichlorohydrin (ECH) by an aluminium-based catalyst i-Bu3Al/H3PO4/DBU afforded a new series of fluorine-polyethers with a high molecular weight and controlled fluorine distribution. Fluorine could be random, gradient, tapered and block incorporated into poly(EO) and poly(ECH) quantitatively. The simultaneous copolymerization of FPGE with EO afforded MFPGE–EO, TFPGE–EO and PFPGE–EO copolymers with random, gradient, and tapered distribution of fluorine, respectively. The simultaneous copolymerization of FPGE with ECH afforded MFPGE–ECH, TFPGE–ECH and PFPGE–ECH copolymers with random and gradient distribution of fluorine, respectively. The sequential copolymerization of FPGE with EO and ECH afforded diblock and triblock copolymers such as EO–FPGE, ECH–FPGE, EO–FPGE–EO, and ECH–FPGE–ECH with block distribution of fluorine. The fluorine distribution of the obtained polyethers had a significant effect on their mechanical properties.
中文翻译:
铝催化的单、三和五氟苯基缩水甘油醚与环氧乙烷和表氯醇的统计共聚
氟苯基缩水甘油醚(FPGE,包括4-单氟苯基缩水甘油醚(MFPGE)、3,4,5-三氟苯基缩水甘油醚(TFPGE)和2,3,4,5,6-五氟苯基缩水甘油醚(PFPGE))与环氧乙烷 (EO) 和环氧氯丙烷 (ECH) 通过铝基催化剂i -Bu 3 Al/H 3 PO 4/DBU 提供了一系列具有高分子量和可控氟分布的新型氟聚醚。氟可以是随机的、梯度的、锥形的和嵌段的,定量地结合到聚(EO)和聚(ECH)中。FPGE 与 EO 的同时共聚得到了 MFPGE-EO、TFPGE-EO 和 PFPGE-EO 共聚物,分别具有氟的无规、梯度和锥形分布。FPGE 与 ECH 的同时共聚得到了 MFPGE-ECH、TFPGE-ECH 和 PFPGE-ECH 共聚物,分别具有氟的随机和梯度分布。FPGE 与 EO 和 ECH 的顺序共聚得到二嵌段和三嵌段共聚物,如 EO-FPGE、ECH-FPGE、EO-FPGE-EO 和 ECH-FPGE-ECH,具有氟的嵌段分布。
更新日期:2021-09-14
中文翻译:
铝催化的单、三和五氟苯基缩水甘油醚与环氧乙烷和表氯醇的统计共聚
氟苯基缩水甘油醚(FPGE,包括4-单氟苯基缩水甘油醚(MFPGE)、3,4,5-三氟苯基缩水甘油醚(TFPGE)和2,3,4,5,6-五氟苯基缩水甘油醚(PFPGE))与环氧乙烷 (EO) 和环氧氯丙烷 (ECH) 通过铝基催化剂i -Bu 3 Al/H 3 PO 4/DBU 提供了一系列具有高分子量和可控氟分布的新型氟聚醚。氟可以是随机的、梯度的、锥形的和嵌段的,定量地结合到聚(EO)和聚(ECH)中。FPGE 与 EO 的同时共聚得到了 MFPGE-EO、TFPGE-EO 和 PFPGE-EO 共聚物,分别具有氟的无规、梯度和锥形分布。FPGE 与 ECH 的同时共聚得到了 MFPGE-ECH、TFPGE-ECH 和 PFPGE-ECH 共聚物,分别具有氟的随机和梯度分布。FPGE 与 EO 和 ECH 的顺序共聚得到二嵌段和三嵌段共聚物,如 EO-FPGE、ECH-FPGE、EO-FPGE-EO 和 ECH-FPGE-ECH,具有氟的嵌段分布。