11-(4'-cyanophenyl-4''-phenoxy)undecyl 2-bromopropionate | 444344-82-5

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 11-(4'-cyanophenyl-4''-phenoxy)undecyl 2-bromopropionate
• 英文别名: 11-[4-(4-cyanophenyl)phenoxy]undecyl 2-bromopropionate；11-[4-(4-Cyanophenyl)phenoxy]undecyl 2-bromopropanoate；11-[4-(4-cyanophenyl)phenoxy]undecyl 2-bromopropanoate
• CAS: 444344-82-5
• 化学式: C₂₇H₃₄BrNO₃
• 分子量: 500.476
• InChiKey: BXAFPXZNFSLMEA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  8.5
• 重原子数：
  32
• 可旋转键数：
  16
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.48
• 拓扑面积：
  59.3
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  4'-(11-hydroxyundecyloxy)-4-cyanobiphenyl 、 2-溴丙酰氯 在 三乙胺 作用下， 以 四氢呋喃 为溶剂， 反应 2.0h， 以74%的产率得到11-(4'-cyanophenyl-4''-phenoxy)undecyl 2-bromopropionate
  参考文献：
  名称：

  Effect of End Groups on the Thermotropic Behavior of Linear Poly[11-(4‘-cyanophenyl-4‘ ‘-phenoxy)undecyl acrylate]s Prepared by ATRP and Their Topological Blends

  摘要：

  Linear poly[11-(4'-cyanophenyl-4"-phenoxy)undecyl acrylate]s with 9-77 (GPC relative to linear polystyrene) or 7-101 (GPC(L8)) repeat units were synthesized by atom transfer radical polymerization of 11-(4'-cyanophenyl-4"-phenoxy)undecyl acrylate using a mesogenic initiator, 11-(4'-cyanophenyl-4"-phenoxy)undecyl 2-bromopropionate. The biphasic regions of the smectic A to isotropic (s(A)-i) transition of the linear polymers are extremely narrow, with full widths at half of the maximum peak intensity (fwhm) = 4.52-7.74 degreesC, in contrast to that of the corresponding polymer prepared by conventional radical polymerization (fwhm = 17.0 degreesC). The breadths of this transition do not vary with chain length, in contrast to the corresponding linear polymers with methyl propionate end groups. The breadth of the sA-i biphasic region of 1:1 binary blends of poly[11-(4'-cyanophenyl-4"-phenoxy)undecyl acrylate]s increases relatively linearly with the difference in end group (and therefore branching) density of the two components, regardless of the combination of molecular architectures (linear, three-arm star, or comb) or the type of end groups (bromine and hydrogen or methyl propionate).

  DOI：

  10.1021/ma020242e

文献信息

• Effect of End Groups on the Thermotropic Behavior of Linear Poly[11-(4‘-cyanophenyl-4‘ ‘-phenoxy)undecyl acrylate]s Prepared by ATRP and Their Topological Blends
  作者：Andrea M. Kasko、Steven R. Grunwald、Coleen Pugh

  DOI：10.1021/ma020242e

  日期：2002.7.1

  Linear poly[11-(4'-cyanophenyl-4"-phenoxy)undecyl acrylate]s with 9-77 (GPC relative to linear polystyrene) or 7-101 (GPC(L8)) repeat units were synthesized by atom transfer radical polymerization of 11-(4'-cyanophenyl-4"-phenoxy)undecyl acrylate using a mesogenic initiator, 11-(4'-cyanophenyl-4"-phenoxy)undecyl 2-bromopropionate. The biphasic regions of the smectic A to isotropic (s(A)-i) transition of the linear polymers are extremely narrow, with full widths at half of the maximum peak intensity (fwhm) = 4.52-7.74 degreesC, in contrast to that of the corresponding polymer prepared by conventional radical polymerization (fwhm = 17.0 degreesC). The breadths of this transition do not vary with chain length, in contrast to the corresponding linear polymers with methyl propionate end groups. The breadth of the sA-i biphasic region of 1:1 binary blends of poly[11-(4'-cyanophenyl-4"-phenoxy)undecyl acrylate]s increases relatively linearly with the difference in end group (and therefore branching) density of the two components, regardless of the combination of molecular architectures (linear, three-arm star, or comb) or the type of end groups (bromine and hydrogen or methyl propionate).