Synthesis of an electron‐acceptor polymer and its charge transfer complex with an electron‐donor polymer

Abe, Kôji; Haibara, Susumu; Itoh, Yoshifumi; Senoh, Saburo

doi:10.1002/macp.1985.021860717

Cited by 13 publications

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Ionomers

Kim¹

2005

Kirk-Othmer Encyclopedia of Chemical Technology

View full text Add to dashboard Cite

Polymers containing ions can be classified into two major families: polyelectrolytes and ionomers. For polyelectrolytes, the ion content is very high, eg, every repeat unit of the polymer has pendent ionic groups. Thus, polyelectrolytes are water soluble. Ionomers are used to define the thermoplastic polymers, which contain a small amount of ionic groups in a matrix of low dielectric constants. Characterization of ionomers is discussed. The use of scattering and X‐ray absorption studies, electron microscopic studies, atomic force microscopy is discussed as ways to determine ionic aggregates and morphology of ionomers. Glass transitions are also studied in this category. Properties of styrene ionomers, as well as polyethylene and polytetrafluroethylene ionomers and ionomer blends are detailed. External polasticizers for ionomers can be used as additives to plasticize either polar or nonpolar regions, or both, depending on the polarities of the additives and the ionomer. Important applications of ionomers include membranes, molded materials, and as fertilizer coatings.

show abstract

Ionomers

Kim¹

2005

Kirk-Othmer Encyclopedia of Chemical Technology

View full text Add to dashboard Cite

show abstract

Miscible blends of styrene‐acrylic acid copolymers with aliphatic, crystalline polyamides

Kuphal¹,

Sperling²,

Robeson³

1991

J of Applied Polymer Sci

View full text Add to dashboard Cite

Styrene‐acrylic acid copolymers exhibit miscibility with various aliphatic, crystalline polyamides (e.g., nylon 6, 11, and 12) at 20% acrylic acid content in the copolymer. At 8% acrylic acid, phase separation is observed with the crystalline polyamides. At 14% acrylic acid, partial miscibility is observed with each polyamide, resulting in the Tg's of the constituents shifted toward the other constituent. The miscibility of the styrene‐acrylic acid copolymers ( > 14 wt % AA) can be ascribed to hydrogen bonding interactions with the polyamides. Styrene‐acrylic acid (20% AA) copolymers are miscible with other nylons with alternating amide orientation along the chain (e.g., nylon 6,6 and nylon 6,9). These samples tend to crosslink upon exposure to temperatures above the polyamide melting point unlike the nylon 6, 11, and 12 blends in which branching may only occur. Nylon 11/styrene‐acrylic acid blends were chosen for crystallization rate studies. A melting point depression of nylon 11 occurs with addition of the styrene‐acrylic acid (20% AA). The Flory‐Huggins interaction parameter from the melting point depression is calculated to be ‐0.27. The crystallization rate of nylon 11 is significantly reduced with the addition of the miscible SAA copolymers (20% AA). The spherulitic growth rate equation predicts this behavior based on a Tg increase with SAA addition.

show abstract

Observation of a nematic phase displayed by a polysiloxane with trinitrofluorenones as side groups

et al. 1992

View full text Add to dashboard Cite

The synthesis and the results of the structural study of two copolysiloxanes with laterally fixed trinitrofluorenone (TNF) units is reported. The two copolysiloxanes having 2,4 (1 a) and 5,3 (1 b) dimethylsiloxane comonomer units per TNF side group differ significantly in their phase behaviour as evident from optical microscopy, differential scanning calorimetry and X-ray scattering: 1 b shows a nematic mesophase whereas l a is an amorphous material. The different phase behaviour is discussed in terms of microphase separation between the siloxane backbone and TNF side groups.

show abstract

Synthesis of an electron‐acceptor polymer and its charge transfer complex with an electron‐donor polymer

Cited by 13 publications

References 24 publications

Ionomers

Ionomers

Miscible blends of styrene‐acrylic acid copolymers with aliphatic, crystalline polyamides

Observation of a nematic phase displayed by a polysiloxane with trinitrofluorenones as side groups

Contact Info

Product

Resources

About