81380
聚丙二醇
P 2,000
别名:
PPG
蒸汽压
<0.01 hPa ( 20 °C)
质量水平
表单
liquid
分子量
Mn 1513
折射率
n20/D 1.451
粘度
~450 mPa.s(20 °C)
沸点
287.6 °C/
溶解性
water: miscible (completely)
密度
1.00 g/mL at 20 °C
SMILES字符串
O(C(CO)C)CC(O)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。
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。
储存分类代码
10 - Combustible liquids
WGK
WGK 1
闪点(°F)
445.0 °F - closed cup
闪点(°C)
229.44 °C - closed cup
个人防护装备
Eyeshields, Gloves
Elisa Campos et al.
Colloids and surfaces. B, Biointerfaces, 88(1), 477-482 (2011-08-09)
Bi-soft segmented poly(ester urethane urea) microparticles were prepared and characterized aiming a biomedical application. Two different formulations were developed, using poly(propylene glycol), tolylene 2,4-diisocyanate terminated pre-polymer (TDI) and poly(propylene oxide)-based tri-isocyanated terminated pre-polymer (TI). A second soft segment was included
Jessalyn Cortese et al.
Journal of the American Chemical Society, 134(8), 3671-3674 (2012-02-11)
We show here that complementary interactions can suppress mesoscopic order and thus lead to a counterintuitive change in material properties. We present results for telechelic supramolecular polymers based on poly(propylene oxide) (PPO), thymine (Thy), and diaminotriazine (DAT). The self-complementary systems
Celeste R Brennecka et al.
Journal of biomedical materials research. Part B, Applied biomaterials, 100(5), 1298-1309 (2012-04-20)
This study examines the in vitro characteristics of a crosslinking polymer system for cerebral aneurysm embolization. The polymeric material is composed of poly(propylene glycol)diacrylate (PPODA) and pentaerythritol tetrakis(3-mercaptopropionate) (QT), formulated with the liquid contrast agents Conray™ or Omnipaque™ 300. The
Zhiyong Zhao et al.
Chemical communications (Cambridge, England), 48(78), 9753-9755 (2012-08-25)
The designed DNA sequences can make DNA-b-PPO undergo in situ transition between diblock and triblock upon pH changes, consequently, induce a morphology-shifting from spherical micelles to nanofibers. This process is reversible and the assembled structures have been characterized by CD
Leandro Rodrigues de Lemos et al.
Journal of hazardous materials, 237-238, 209-214 (2012-09-11)
We investigated the extraction behavior of Cu(II) in the aqueous two-phase system (ATPS) formed by (L35+MgSO(4)+H(2)O) or (L35+(NH(4))(2)SO(4)+H(2)O) in the presence of the extracting agent 1-(2-pyridylazo)-2-naphthol (PAN). At pH=3 and a PAN concentration of 0.285 mmol kg(-1), both ATPS lead
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