摘要:

It was only 2 years ago that “Collagen and Gelatin in the Solid State” was discussed by Yannas [1] in this Journal. That another review follows so soon is a reflection of the breadth of the subject and the accelerating interests in this field. Unlike other biological macromolecules which have specific genetic or metabolic activities, collagen belongs to a class of structural proteins. It is ubiquitous in the animal kingdom, contributing 20 to 30% of total body proteins in vertebrate. It is present throughout the body but is in high concentration in skin, tendon, and bone. As the characteristic extracellular component of the mesodermal tissue, collagen occupies a key position in the molecular architecture of higher animals which enables it to be the main agent controlling the distribution of both external and internal forces. For these reasons, collagen research has brought together biologists, physiologists, chemists, physicists, and engineers in an interdisciplinary endeavor.

ISSN:1532-1797    

DOI:10.1080/15321797508076103

出版商:Taylor & Francis Group    

年代:1975

数据来源: Taylor

摘要:

Molecular weight and molecular weight distribution have been shown to markedly affect the mechanical properties of polymers, and this subject has recently been reviewed [l]. In this review by Martin et al. it was pointed out that indirect effects, i.e., such other changes as branching and orientation, can markedly affect the mechanical properties, also. This review is concerned with variation in the configurational and compositional variables of polymers as a function of molecular weight.

ISSN:1532-1797    

DOI:10.1080/15321797508076104

出版商:Taylor & Francis Group    

年代:1975

数据来源: Taylor

摘要:

Aldehyde polymers are probably the oldest synthetic polymers [1–8]. Polyoxymethylene, the polymer of formaldehyde, was first described by Butlerov in 1859 and the polymer of chloral was first prepared in 1832 by Liebig. This was about one century before the concept of linear macromolecules was developed. Polyformaldehyde and polychloral were isolated because they were stable at room temperature and above.

ISSN:1532-1797    

DOI:10.1080/15321797508076105

出版商:Taylor & Francis Group    

年代:1975

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:10.1080/15321797508076102

出版商:Taylor & Francis Group    

年代:1975

数据来源: Taylor