Three series of dichloride and dihydroxyl-terminated polysulfone telechelics (Cl-PES-Cl and HO-PES-OH, M n = 2580–12,750 daltons) were prepared from bis(4-chlorophenyl) sulfone with bisphenol A, 4,4′-dihydroxydiphenyl ether and 4,4′-dihydroxybiphenyl. The glass transition temperatures and thermal stabilities of the 30 telechelics synthesized were evaluated as a function of molecular weights and the nature of the end groups. It was observed that the glass transition temperatures of lower molecular weighted dihydroxyl telechelics are higher, due to the capabilities of forming hydrogen bonds, than the corresponding dichloride telechelics. On the other hand, the increase in the glass transition temperatures was steeper with dichloride-terminated oligomers as compared to the corresponding dihydroxyl-terminated ones. In addition, dichloride telechelics manifest higher thermal stabilities than dihydroxyl-terminated oligomers.
Polymer Bulletin – Springer Journals
Published: Feb 7, 2017
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
All the latest content is available, no embargo periods.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud