page_title: Ladder polymer
hierarchical_section_title: Ladder polymer
caption_attribution_description: English: Unbranched zweier double chain of amphibole (Tremolite) Data from: Yang, H.; Evans, B. W.(1996): X-ray structure refinements of tremolite at 140 and 295 K: Crystal chemistry and petrologic implications, American Mineralogist 81, pp. 1117-1125 http://rruff.geo.arizona.edu/AMS/xtal_data/CIFfiles/00375.cif Calculation of image data: Larry W. Finger, Martin Kroeker, and Brian H. Toby, DRAWxtl, an open-source computer program to produce crystal-structure drawings, J. Applied Crystallography V40, pp. 188-192, 2007 http://www.lwfinger.net/drawxtl/ Rendering: POVRAY Deutsch: Unverzweigte zweier Doppelkette von Ampfiboe (Tremolit) Data from: Yang, H.; Evans, B. W.(1996): X-ray structure refinements of tremolite at 140 and 295 K: Crystal chemistry and petrologic implications, American Mineralogist 81, pp. 1117-1125 http://rruff.geo.arizona.edu/AMS/xtal_data/CIFfiles/00375.cif Berechnung der Bilddaten: Larry W. Finger, Martin Kroeker, and Brian H. Toby, DRAWxtl, an open-source computer program to produce crystal-structure drawings, J. Applied Crystallography V40, pp. 188-192, 2007 http://www.lwfinger.net/drawxtl/ Rendering: POVRAY
context_page_description: In chemistry, a ladder polymer is a type of double stranded polymer with the connectivity of a ladder. In a typical one-dimensional polymer, e.g. polyethylene and polysiloxanes, the monomers form two bonds, giving a chain. In a ladder polymer the monomers are interconnected by four bonds. Inorganic ladder polymers are found in synthetic and natural settings. Ladder polymers are a special case of cross-linked polymers because the crosslinks exist only with pairs of chains.
  According to one definition, a ladder polymer, adjacent rings have two or more atoms in common.
context_section_description: In chemistry, a ladder polymer is a type of double stranded polymer with the connectivity of a ladder. In a typical one-dimensional polymer, e.g. polyethylene and polysiloxanes, the monomers form two bonds, giving a chain.  In a ladder polymer the monomers are interconnected by four bonds.  Inorganic ladder polymers are found in synthetic and natural settings. Ladder polymers are a special case of cross-linked polymers because the crosslinks exist only with pairs of chains.
  According to one definition, a ladder polymer, adjacent rings have two or more atoms in common.
caption: (Si4O116−)n chain in the mineral tremolite.
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