Linear low-density polyethylene

<p>Linear low-density polyethylene (LLDPE) is a substantially linear <a href="/facts/Polymer/eF32E50K">polymer</a> (<a href="/facts/Polyethylene/LaaAf4cn">polyethylene</a>), with significant numbers of short branches, commonly made by <a href="/facts/Copolymerization/35D97DuV">copolymerization</a> of <a href="/facts/Ethylene/QMNBYLYn">ethylene</a> with longer-chain <a href="/facts/Olefin/RtYcS6kU">olefins</a>. Linear low-density polyethylene differs structurally from conventional <a href="/facts/Low-density_polyethylene/qK26w1dJ">low-density polyethylene</a> (LDPE) because of the absence of long chain branching. The linearity of LLDPE results from the different manufacturing processes of LLDPE and LDPE. In general, LLDPE is produced at lower temperatures and pressures by copolymerization of ethylene and such higher <a href="/facts/Alpha-olefins/lzbLgU7Q">alpha-olefins</a> as <a href="/facts/Butene/6JdB9n0U">butene</a>, <a href="/facts/Hexene/P7A9a4jL">hexene</a>, or <a href="/facts/Octene/xF8PYlQY">octene</a>. The amount of comonomer is typically in the range from 1 to 10%. The copolymerization process produces an LLDPE polymer that has a narrower molecular weight distribution than conventional LDPE and in combination with the linear structure, significantly different <a href="/facts/Rheology/KexaBNCS">rheological</a> properties.
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Linear low-density polyethylene open-in-new

Linear low-density polyethylene