because they lack a crystalline structure. brittleness can be decreased with the addition of plasticizers , which increases the mobility of amorphous chain segments to effectively lower the glass transition temperature. modification of the polymer through copolymerization or through the addition of...
the isocyanates are difunctional, that is they have exactly two isocyanate groups per molecule. an important exception to this is polymeric diphenylmethane diisocyanate, which is a mixture of molecules with two, three, and four or more isocyanate groups. in cases like this the material has an average...
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model through new technologies and new partnerships� advancement of work-style reforms to help employees create greater value through higher productivity and quality� reinvented work-styles� sustainable growth through a reinvented sampo yoshi approach※� ※a part of the management philosophy of the ohmi...