✦ LIBER ✦

Synthesis of low-molecular-weight telechelic polyisobutylene

✍ Scribed by E. Walch; R.J. Gaymans

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 579 KB
Volume: 34
Category: Article
ISSN: 0032-3861
DOI: 10.1016/0032-3861(93)90098-u

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Investigation of the structure and prope

Investigation of the structure and properties of polyisobutylene-based telechelic ionomers of narrow molecular weight distribution. I.

✍ Don Loveday; Garth L. Wilkes; Youngkwan Lee; Robson F. Storey 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 251 KB 👁 2 views

The solid state morphology of recently developed sulfonated polyisobutylene (PIB) telechelic ionomers with narrow molecular weight distribution (MWD) ( M V w /M V n É 1.15) was investigated. A small angle X-ray scattering (SAXS) peak often associated with the aggregation of the ionic species in the

Synthesis of isobutenyl-telechelic polyi

Synthesis of isobutenyl-telechelic polyisobutylene by functionalization with isobutenyltrimethylsilane

✍ Lars V. Nielsen; Rasmus R. Nielsen; Bo Gao; Jørgen Kops; Béla Iván 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 544 KB

Isobutenyl-telechelic polyisobutylenes (PIBs) were synthesized by reacting tert-chlorine-telechelic and living PIBs with isobutenyltrimethylsilane (IBTMS) in the presence of TIC14 in CH2Cl2/hexane (40/60 v/v) solvent mixtures at -78°C. In order to obtain PIB oligomers, living polymerization of isobu

Investigation of the structure and prope

Investigation of the structure and properties of polyisobutylene-based telechelic ionomers of narrow molecular weight distribution. II. mechanical

✍ Don Loveday; Garth L. Wilkes; Youngkwan Lee; Robson F. Storey 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 251 KB 👁 2 views

Sulfonated polyisobutylene (PIB) telechelic ionomers with narrow molecular weight distribution (MWD) have been recently developed, providing additional control over the structure and properties of these novel polymers. A small angle X-ray scattering (SAXS) peak often associated with the aggregation

Graft copolymerization of maleic anhydri

Graft copolymerization of maleic anhydride onto low-molecular-weight polyisobutylene through solvothermal method

✍ Wenjuan Gong; Rongrong Qi 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 316 KB 👁 1 views

The use of different diols in the synthe

The use of different diols in the synthesis of low-molecular-weight lactic-acid-based telechelic prepolymers

✍ Kari Hiltunen; Jukka V. Seppälä 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 132 KB 👁 2 views

The synthesis of low-molecular-weight (M V w (GPC) õ 72000 g mol) lactic- acid-based telechelic prepolymers by condensation polymerization of L-lactic acid was investigated. All polymerizations were carried out in the melt, using tin(II)octoate as catalyst, different diols, and different polymerizat

Molecular weight dependence of stress re

Molecular weight dependence of stress relaxation of commercial polyisobutylene

✍ Roberto Greco 📂 Article 📅 1978 🏛 Elsevier Science 🌐 English ⚖ 369 KB

Stress relaxation measurements in simple exten6ion of three commercial samples of polyisobutylene (PIB) of different viscosity molecular weights (1.1, 1.7 and 2.3 x 106) have been made at stretch ratios (,~) up to about 2. Data obtained at 3 ° and 50 ° have been reduced at 25 °. As already found pre