en.wikipedia.org/wiki/CrystallinityCrystallinity refers to the degree of structural order in a solid.In a crystal, the atoms or molecules are arranged in a regular, periodic manner.The degree of crystallinity has a big influence on hardness, density, transparency and diffusion.In a gas, the relative positions of the atoms or molecules are completely random.
en.wikipedia.org/wiki/Crystallization_of_polymersThe degree of crystallinity is estimated by different analytical methods and it typically ranges between 10 and 80%, with crystallized polymers often called "semi-crystalline". The properties of semi-crystalline polymers are determined not only by the degree of crystallinity, but also by the size and orientation of the molecular chains.
www.sciencedirect.com/topics/chemistry/crystallinityCrystallinity increases as a result of chain scission, so the Young’s modulus and strength may be expected to increase during degradation. This effect is offset by the fact that as crystallinity increases, molecular weight reduces, which in turn reduces the values of Young’s modulus and strength.
willson.cm.utexas.edu/Teaching/.../Crystallinity%20in%20Polymers.pdfAn estimate of crystallinity The crystallinity can be estimated by comparing the areas of the peaks due to the amorphous polymer with those of the crystalline phase: %C=A cr / (A cr + A am) cr cr am K.A. Moly et al. / European Polymer Journal 41 (2005) 1410–1419;
pslc.ws/macrog/crystal.htmCrystallinity makes a material strong, but it also makes it brittle. A completely crystalline polymer would be too brittle to be used as plastic. The amorphous regions give a polymer toughness, that is, the ability to bend without breaking and the ability to absorb impact energy. These are both good properties to have.
www.sciencedirect.com/topics/earth-and-planetary-sciences/crystallinityCrystallinity. The crystallinity of a polymer refers to the degree as to which there are regions where the polymer chains are aligned with one another. However, in order for this to occur, some degree of stereoregularity is required.
www.tainstruments.com/pdf/literature/TA123new.pdf1 TA123 Determination of Polymer Crystallinity by DSC Roger L. Blaine, Ph.D. TA Instruments, 109 Lukens Drive, New Castle DE 19720, USA ABSTACT Perhaps no fundamental property affects the physical properties of a polymer in
www.thefreedictionary.com/crystallinityDefine crystallinity. crystallinity synonyms, crystallinity pronunciation, crystallinity translation, English dictionary definition of crystallinity. adj. 1. Being, relating to, or composed of crystal or crystals. 2. Resembling crystal, as in transparency or distinctness of structure or outline.
www.merriam-webster.com/dictionary/crystallineCrystalline definition is - resembling crystal: such as. How to use crystalline in a sentence. ... crystallinity \ ˌkris- tə- ˈlin- ət- ē \ noun, plural crystallinities. Keep scrolling for more . More from Merriam-Webster on crystalline. Thesaurus: All synonyms and antonyms for crystalline.
www.researchgate.net/.../How_can_I_measure_crystallinity_by_XRD_Did_you_use_a...The calculation of crystallinity by XRD is based on the presumption that the broad peak comes from amorphous phase, the sharp peak comes from crystal phase.