388726
聚丁烯类化合物
average Mn ~2,300 by VPO, isobutylene >90 %
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线性分子式:
[-CH2C(CH3)2-]x[-CH2CH(C2H5)-]y
化学文摘社编号:
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12162002
MDL number:
InChI
1S/2C4H8/c2*1-3-4-2/h3-4H,1-2H3;3H,1,4H2,2H3/b4-3+;
SMILES string
CCC=C.C\C=C\C
InChI key
WTOOLIQYCQJDBG-BJILWQEISA-N
form
liquid
mol wt
average Mn ~2,300 by VPO
composition
isobutylene, >90%
refractive index
n20/D 1.504
viscosity
4,000-4,400 cSt(99 °C)(lit.)
transition temp
Tg −64.9 °C, pour point (ASTM D 97) +18 °C
density
0.908 g/mL at 25 °C
Quality Level
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Application
疏水材料衍生形成洗涤剂和防锈添加剂。增加粘合剂和涂料的粘性、柔韧性和防水性。有助于 LLDPE 膜的"粘着"。用于聚合物、润滑剂和金属加工液的增塑剂。
Features and Benefits
粘性随着分子量增大而增大。可能出现一些内部双键。
Physical form
以乙烯基封端。
Other Notes
剩余部分为 1-丁烯 和 2-丁烯
signalword
Danger
hcodes
Hazard Classifications
Asp. Tox. 1 - Skin Irrit. 2
存储类别
10 - Combustible liquids
wgk
WGK 1
flash_point_f
159.8 °F - closed cup
flash_point_c
71 °C - closed cup
ppe
Eyeshields, Gloves
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Biomacromolecules, 12(6), 2382-2388 (2011-05-03)
An innovative type of triblock copolymer that maintains and even increases the mechanical properties of poly(l-lactide) (PLLA) and poly(ε-caprolactone) (PCL) with a controlled, predictable, and rapid degradation profile has been synthesized. Elastic triblock copolymers were formed from the hydrophobic and
Xi-xiao Yang et al.
Di 1 jun yi da xue xue bao = Academic journal of the first medical college of PLA, 25(10), 1261-1263 (2005-10-20)
To evaluate the biocompatibility of polybutylcyanoacrylate nanoparticles (PBCA-NP) manufactured by emulsion polymerization technique. MTT assay was performed for evaluation of the cytotoxicity of PBCA-NP (e.g. cell proliferation and hemolytic test) experiments of long-term subcutaneous implantation and implantation in the muscular
Takanori Tanino et al.
Applied microbiology and biotechnology, 82(1), 59-66 (2008-11-06)
A Candida antarctica lipase B (CALB)-displaying yeast whole-cell biocatalyst was constructed with the integration of the CALB cell-surface display expression cassette in the yeast genome and cell fusion by mating. Lipase hydrolytic activity of the yeast whole-cell biocatalyst subsequently increased
A M Belu et al.
Rapid communications in mass spectrometry : RCM, 14(7), 564-571 (2000-04-25)
A series of 16 polyarylates, with well-controlled and systematically varying chemistry, has been characterized by time-of-flight secondary ion mass spectrometry (TOF-SIMS). The polymers are structurally identical except for the incremental additions of C2H4 units to the backbone and sidechain. From
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