摘要:

The acrylamide family of monomers is a highly versatile group of chemical intermediates. The major use of these monomers is the preparation of polymers and copolymers having a highly polar functional group attached to the backbone.

ISSN:1532-1797    

DOI:10.1080/07366578608081910

出版商:Taylor & Francis Group    

年代:1986

数据来源: Taylor

摘要:

Great interest has been shown in the kinetics and mechanisms of free radical copolymerizations that produce highly alternating copolymers. In many of these systems the production of alternating copolymers seems to arise naturally, while in others it is necessary to add a metal halide or an organometal halide regulating agent to modify reactivities. Much of the interest in alternating radical copolymerizations centers around the precise mechanism of alternation and in particular whether or not any of the alternation arises from the involvement of monomer-monomer donor-acceptor complexes (sometimes called charge-transfer complexes).

ISSN:1532-1797    

DOI:10.1080/07366578608081911

出版商:Taylor & Francis Group    

年代:1986

数据来源: Taylor

摘要:

Liquid crystals were discovered about ninety years ago. The Austrian botonist Reinitzer [1] observed that cholesteryl benzoate has two sharp melting points at ∼145 and 179°C. At 145°C the solid crystalline material changed to a hazy anisotropic liquid which at 179°C became a clear, transparent, and isotropic phase. The nature of cholesteryl benzoate in the temperature region of 145–179°C was called the liquid crystalline (LC) state or, more precisely, the mesomorphic state. Materials having the tendency above the melting temperature (Tm) of simultaneously combining the features of liquid (i.e., flow properties) and crystalline bodies (i.e., anisotropy) were called liquid crystals [2] or mesomorphic substances [3].

ISSN:1532-1797    

DOI:10.1080/07366578608081912

出版商:Taylor & Francis Group    

年代:1986

数据来源: Taylor

摘要:

This is a scanned image of the original Editorial Board page(s) for this issue.

ISSN:1532-1797    

DOI:10.1080/07366578608081909

出版商:Taylor & Francis Group    

年代:1986

数据来源: Taylor