181498
聚异丁烯
average Mw ~4,200,000, average Mn ~3,100,000 by GPC/MALLS, average Mv ~4,700,000
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关于此项目
线性分子式:
[CH2C(CH3)2]n
化学文摘社编号:
UNSPSC Code:
12162002
PubChem Substance ID:
MDL number:
InChI
1S/C4H8/c1-4(2)3/h1H2,2-3H3
SMILES string
CC(C)=C
InChI key
VQTUBCCKSQIDNK-UHFFFAOYSA-N
form
slab/chunk
mol wt
average Mn ~3,100,000 by GPC/MALLS, average Mv ~4,700,000, average Mw ~4,200,000
contains
500 ppm BHT as stabilizer
refractive index
n20/D 1.51
density
0.92 g/mL at 25 °C (lit.)
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General description
Polyisobutylene (PIB) is an elastomer and plasticizer.It exhibits good gas permeability, thermal, oxidative and chemical stability. Films of PIB can be synthesized by RF sputtering, whereas branched PIB can be synthesized from 4-(1-hydroxy-1-methylethyl)styrene -co-styrene (HMESt-co-St) as inimer.
Application
PIB may be used to prepare polymers blends with isotactic polypropylene (iPP).
存储类别
10 - Combustible liquids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves
法规信息
新产品
此项目有
Dynamic rheological properties of polyisobutylene
Dunlop AN and Williams HL
Journal of Applied Polymer Science, 20, 193-206 (1976)
Morphology, crystallization and melting behaviour of films of isotactic polypropylene blended with ethylene-propylene copolymers and polyisobutylene,
Martuscelli E, et al.
Polymer, 23(2), 229-237 (1982)
Annalisa Calò et al.
Langmuir : the ACS journal of surfaces and colloids, 26(8), 5312-5315 (2010-03-26)
This work reports the application of a patterned thin film of polyisobutylene (PIB) irradiated with an electron beam as a time-temperature integrator, i.e., a device that is able to record the thermal history of a product. The device is fabricated
Goy Teck Lim et al.
Biomacromolecules, 12(5), 1795-1799 (2011-04-01)
This paper is the first report of electrospinning neat polyisobutylene-based thermoplastic elastomers. Two generations of these materials are investigated: a linear poly(styrene-b-isobutylene-b-styrene) (L_SIBS) triblock copolymer and a dendritic poly(isobutylene-b-p-methylstyrene) (D_IB-MS), also a candidate for biomedical applications. Cross-polarized optical microscopy shows
David Cozzens et al.
Journal of biomedical materials research. Part A, 95(3), 774-782 (2010-08-21)
Long term in vitro biostability of thermoplastic polyurethanes (TPUs) containing mixed polyisobutylene (PIB)/poly(tetramethylene oxide) (PTMO) soft segment was studied under accelerated conditions in 20% H(2)O(2) solution containing 0.1M CoCl(2) at 50 °C to predict resistance to metal ion oxidative degradation
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