435503
聚（丙二醇）- 嵌段-聚（乙二醇）- 嵌段-聚（丙二醇）
average Mn ~3,300
别名:
Pluronic® 31R1, PPG-PEG-PPG
表单
viscous liquid
质量水平
分子量
average Mn ~3,300
组成
PEG, 10 wt. %
折射率
n20/D 1.454
表面张力
34 dyn/cm, 25 °C, 0.1 wt. % in H2O
粘度
660 cP(25 °C, Brookfield)(lit.)
转变温度
softening point −25 °C
cloud point 25 °C (1 wt. % aqueous solution)
密度
1.018 g/mL at 25 °C
HLB
2.0 - 7.0
SMILES字符串
O2C(C2)C.O1CC1
InChI
1S/C3H6O.C2H4O/c1-3-2-4-3;1-2-3-1/h3H,2H2,1H3;1-2H2
InChI key
RVGRUAULSDPKGF-UHFFFAOYSA-N
一般描述
聚合物的表面活性取决于 EO/PO 比率。与普朗尼克®表面活性剂相比，PPG-PEG-PPG 表现出较低的起泡性、较大的消泡性和较低的凝胶化倾向。PPG-PEG-PPG 的末端仲羟基与普朗尼克表面活性剂中的伯羟基相比，具有较低的反应活性和酸性。
应用
PPG-PEG-PPG 普朗尼克® 31R1 可作为表面清洗剂（软质和硬质）、涂料中的消泡剂、水处理中，金属加工中的润滑剂，线性和交联聚酯和聚氨酯的消泡剂和填充剂。
软硬表面兼用型清洁剂，涂料和水处理用消泡剂。金属加工润滑剂、消泡助剂以及用于线性和交联聚酯及聚氨酯的扩链剂。
特点和优势
表面活性取决于EO/PO比。相比Pluronic®表面活性剂，低起泡、高消泡、更难形成凝胶。端基为二级羟基（二级醇），反应性和酸性低于Pluronic®表面活性剂的一级羟基。
法律信息
Pluronic is a registered trademark of BASF
储存分类代码
10 - Combustible liquids
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
V K Zhalimov et al.
Biofizika, 57(2), 308-316 (2012-05-19)
It has been shown that sorption of most proteins with the molecular weight lower than 200 kDa from human blood plasma on the surface of perfluorocarbon emulsion, stabilized with proxanol 268, is mainly based on hydrophobic interaction, whereas sorption of
Liyan Zhao et al.
Colloids and surfaces. B, Biointerfaces, 97, 101-108 (2012-05-23)
In this study, curcumin (Cur) loaded mixed micelles (Cur-PF), composed of Pluronic P123 (P123) and Pluronic F68 (F68), was prepared using the thin-film hydration method and evaluated in vitro. The preparation process was optimized with a central composite design (CCD).
Wei Xu et al.
Drug delivery, 19(4), 208-219 (2012-05-31)
The aim of this study was to construct novel targeting polymeric micelles. Folate-Poly (ethylenimine)-Pluronic copolymers were synthesized. A paclitaxel (PTX)-loaded mixed micelles consisting of Folate-Poly (ethylenimine)-Pluronic and Pluronic L121 copolymers have been developed. The mixed micelles showed nano-sized spherical morphology.
D J Bartley et al.
Veterinary parasitology, 187(3-4), 464-472 (2012-03-21)
Non-specific mechanisms involving ATP-binding cassette drug efflux transporters may play an important role in xenobiotic clearance in ovine gastro-intestinal nematodes. By using transporter inhibitors, the aim of this trial was to assess the possibility of increasing drug bioavailability in the
Xijun Zhang et al.
Journal of Huazhong University of Science and Technology. Medical sciences = Hua zhong ke ji da xue xue bao. Yi xue Ying De wen ban = Huazhong keji daxue xuebao. Yixue Yingdewen ban, 31(6), 842-845 (2011-12-17)
This study examined the effect of P85 (a pluronic block copolymer) and microbubble (MB) ultrasound contrast agents under ultrasound irradiation on gene transfection and expression. The pEGFP plasmids that can encode enhanced green fluorescent protein (pEGFP) served as a report
商品
Mesoporous materials self-assemble from sol-gel precursors and amphiphiles, forming versatile structures for various applications.
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