Synthetic polymersSemi-synthetic polymersSynthetic methodologiesSmart polymersNanosystemsPharmaceutical applicationsThis chapter presents a general description of the most common synthetic and semi-synthetic polymers, ranging from macro to nanoscopic sizes that have been used in the preparation of different ...
a纤维素醋酯(cellulose acetate, CA)是一种原料来自天然的半合成高聚物。具有资源丰富,可持续发展的特点。纤维素醋酯纤维在化学纤维中与真丝最为接近,光泽优雅,染色鲜艳,染色色牢度强,手感柔软,其织物具有适度的吸湿、速干性。而且具有稳定的抗起球性,抗静电性,污渍易脱落,易洗涤,可用于高档服饰的里料,受到消费者...
Currently definition of biocompatibility is quite ambiguous with respect to the use of FDA approved polymeric materials. This article analysed patent portfolios for the trend patterns ofprolific biocompatible polymers for capitalization and commercialization in the forthcoming years.Method: Pair Bulk Data (...
It is therefore a primary object of this invention to provide a near-fully dense part in a selective laser sintering machine, the part formed from a semicrystalline or substantially crystalline synthetic resinous sinterable powder having tailored properties uniquely adapted to the purpose at hand. ...
(g) waxes, the role of which is to assist in obtaining non-scratch, hardened films, which waxes may be natural, such as candelilla wax, carnauba wax or the like, or synthetic, such as polyethylene, polypropylene, paraffin, chlorinated paraffin, chlorinated naphthalene waxes or the like; (h...
The semi-crystalline polymers of the invention can be synthetic in origin. In addition, they may not comprise a polysaccharide backbone. Generally, the crystallizable units (chains or blocks) of the semi-crystalline polymers according to the invention originate from monomer(s) with crystallizable bl...
Plastics are materials which are softened by heat and set into lasting form when shaped in a mold. Some are natural; some are semi-synthetic, the result of chemical action on a natural substance; some are synthetic, built up from the constituents of oil or coal. All are based on the che...
The semi-interpenetrating polymeric networks were synthesized using synthetic and natural polymers. As synthetic polymers, poly(dimethylsiloxane) (PDMS Sylgard 184 kit from Dow Corning, USA) and poly(vinyl alcohol) (PVA), with a 99% degree of hydrolysis and a typical average molecular weight (Mw)...
Examples of suitable bioactive agents include, but are not limited to, synthetic inorganic and organic compounds, proteins and peptides, polysaccharides and other sugars, lipids, and DNA and RNA nucleic acid sequences having therapeutic, prophylactic or diagnostic activities. Nucleic acid sequences incl...
Germershaus O, Luhmann T, Rybak J-C, Ritzer J and Meinel L: Application of natural and semi-synthetic polymers for the delivery of sensitive drugs. Int Mater Rev 60: 101-131, 2015.Application of natural and semi-synthetic polymers for the delivery of sensitive drugs. Germershaus O,Lu...