428116
聚丙烯
Isotactic, average Mw ~12,000, average Mn ~5,000
别名:
PP
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关于此项目
线性分子式:
[CH2CH(CH3)]n
化学文摘社编号:
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12162002
MDL number:
产品名称
聚丙烯, Isotactic, average Mw ~12,000, average Mn ~5,000
InChI
1S/C22H42O3/c1-2-3-4-5-11-14-17-20-21(25-20)18-15-12-9-7-6-8-10-13-16-19-22(23)24/h20-21H,2-19H2,1H3,(H,23,24)/t20-,21+/m1/s1
SMILES string
CC=C
InChI key
NSYDMBURIUSUDH-RTWAWAEBSA-N
form
pellets
mol wt
average Mn ~5,000
average Mw ~12,000
viscosity
6.0 poise(190 °C, Brookfield Thermosel)(lit.)
mp
157 °C
acid number
<0.05 mg KOH/g
transition temp
softening point 163 °C (ring and ball, ASTM E 28)
density
0.9 g/mL at 25 °C (lit.)
Quality Level
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Application
用于减少结块、划痕和磨损的蜡改性剂。改善聚丙烯膜和纤维中颜料的分散性。
General description
低密度、低粘度的均聚物。
存储类别
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
Hiroyuki Yanagisawa et al.
Molecules (Basel, Switzerland), 23(4) (2018-03-23)
This study was conducted with the aim of achieving the simultaneous screening of various additives in polymer materials by utilizing a solvent-free pyrolyzer/thermal desorption gas chromatography mass spectrometry (Py/TD-GC-MS) method. As a first step to achieve this goal, simultaneous screening
[Procedure for membrane oxygenation of blood over hydrophilic polymer membranes].
H Körber et al.
Biomedizinische Technik. Biomedical engineering, 43 Suppl, 338-340 (1998-12-22)
F Cassiola et al.
Artificial organs, 24(3), 168-173 (2000-04-12)
The introduction of microporous polypropylene hollow fibers in recent years has brought considerable advances to blood oxygenators. However, lifetime and assembly problems are still unresolved. In this work we tried to rate the oxygen permeation velocity by turning the fibers
Simon J Gallagher et al.
Journal of drug targeting, 11(6), 373-379 (2003-12-12)
The aim of this study was to test the hypothesis that the most appropriate model for studying the diffusional release of an active from a topical formulation is one in which the membrane offers minimal resistance to release and involves
G Imanidis et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 47(3), 283-287 (1999-06-26)
The possibility to control the release rate of salbutamol through the hydrophobic Celgard 2500 polypropylene membrane by varying the composition and the viscosity of hydrophilic drug vehicles was investigated. The use of the polypropylene membrane as a control membrane for
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