Synthesis and Properties of Cross-Linked Poly(vinylene-arsine)
| Autor: | Yoshiki Chujo, Tomokazu Umeyama, Mia D. Bravo, Akiko Nakahashi, Kensuke Naka |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
chemistry.chemical_classification
Polymers and Plastics Chemistry General Chemistry Polymer Condensed Matter Physics Gel permeation chromatography chemistry.chemical_compound Differential scanning calorimetry Monomer Phenylacetylene Polymerization Polymer chemistry Materials Chemistry Solubility Glass transition |
| Zdroj: | Polymer Bulletin. 52:191-199 |
| ISSN: | 1436-2449 0170-0839 |
| DOI: | 10.1007/s00289-004-0277-x |
| Popis: | Cross-linked poly(vinylene-arsine)s (4) were synthesized by a free-radical terpolymerization of phenylacetylene (2), hexaphenylcyclohexaarsine (l), and p- or m-diethynylbenzene (p- or m-3) at different compositions in the presence of a catalytic amount of AIBN. The number-average molecular weights of the resulting polymers were a few thousands estimated by gel permeation chromatography (GPC) analysis. By gas chromatography (GC) analysis p-3 was found to be more reactive during the polymerization than m-3 and the resulting cross-linked polymer (p-4) showed lower solubility than that of m-4. The cross-linked poly(vinylene-arsine)s showed higher glass transition temperature in the measurement of differential scanning calorimetry (DSC) and more red-shifted emission in chloroform solution than that of the linear poly(vinylene-arsine). These properties could be tuned by varying the monomer feed ratio. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink