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Merck
CN

81380

Sigma-Aldrich

聚丙二醇

P 2,000

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别名:
PPG
CAS号:
MDL编号:
UNSPSC代码:
12162002
PubChem化学物质编号:
NACRES:
NA.23

质量水平

形式

liquid

分子量

Mn 1513

折射率

n20/D 1.451

粘度

~450 mPa.s(20 °C)

溶解性

water: miscible (completely)

密度

1.00 g/mL at 20 °C

InChI

1S/C6H14O3/c1-5(8)4-9-6(2)3-7/h5-8H,3-4H2,1-2H3

InChI key

DUFKCOQISQKSAV-UHFFFAOYSA-N

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一般描述

聚丙二醇是丙二醇和水的加成聚合物。它由化学式HO(C3H6O)nC3H6OH进行表示,其中n代表氧丙烯基团的平均数。聚丙二醇可溶于水和某些有机溶剂中(例如脂族酮和醇),不溶于醚和大多数脂族烃。

应用

聚丙二醇(PPG)被广泛用作消泡剂。例如,它可以用来控制苏云金芽孢杆菌基生物农药生产(从污水污泥中分离)中的泡沫。

它可以用于制备聚氨酯(PU)弹性体。例如,它可以用于合成具有良好吸声性能的 PU 弹性体。

PPG-2000 可作为柔性链段用于制备PU 基自修复聚合物网络。这些网络在软电子领域得到了应用。

特点和优势

  • 长而灵活的烷基促进链的迁移,这有利于快速自愈。
  • 存在于聚合物两侧的甲基改善了水中的乳化性。

WGK

WGK 1

闪点(°F)

closed cup

闪点(°C)

closed cup

个人防护装备

Eyeshields, Gloves


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