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2. Polyisoprene - Wikipedia

   en.wikipedia.org/wiki/Polyisoprene

   Coordinative chain polymerization: With Ziegler–Natta catalyst TiCl 4 /Al(i-C 4 H 9) 3, a more pure cis-1,4-polyisoprene similar to natural rubber is formed. With Ziegler–Natta catalyst VCl 3 /Al(i-C 4 H 9) 3, trans-dominant polyisoprene is formed. [4] 1,2 and 3,4 dominant polyisoprene is produced MoO 2 Cl 2 catalyst supported by phosphorus ...

3. Poly(p-phenylene oxide) - Wikipedia

   en.wikipedia.org/wiki/Poly(p-phenylene_oxide)

   Poly(p-phenylene oxide) (PPO), poly(p-phenylene ether) (PPE), poly(oxy-2,6-dimethyl-1,4-phenylene), often referred to simply as polyphenylene oxide, is a high-temperature thermoplastic with the general formula (C 8 H 8 O) n. It is rarely used in its pure form due to difficulties in processing.

4. Gender of connectors and fasteners - Wikipedia

   en.wikipedia.org/wiki/Gender_of_connectors_and...

   Schematic symbols for male and female connector pins. In electrical and mechanical trades and manufacturing, each half of a pair of mating connectors or fasteners is conventionally designated as male or female, [1] a distinction referred to as its gender. [2] The female connector is generally a receptacle that receives and holds the male connector.

5. Poly(p-phenylene) - Wikipedia

   en.wikipedia.org/wiki/Poly(p-phenylene)

   Poly(p-phenylene) (PPP) is made of repeating p-phenylene units, which act as the precursor to a conducting polymer of the rigid-rod polymer family. The synthesis of PPP has proven challenging, but has been accomplished through excess polycondensation with the Suzuki coupling method.

6. Plastic bag - Wikipedia

   en.wikipedia.org/wiki/Plastic_bag

   A plastic bag, poly bag, or pouch is a type of container made of thin, flexible, plastic film, nonwoven fabric, or plastic textile. Plastic bags are used for containing and transporting goods such as foods, produce, powders , ice, magazines , chemicals , and waste .

7. Korg Mono/Poly - Wikipedia

   en.wikipedia.org/wiki/Korg_mono/poly

   The Korg Mono/Poly (MP-4) is a paraphonic analog synthesizer released by Korg in 1981, bridging the gap between monophonic and polyphonic synthesis. [1] Released in the same year as the Korg Polysix, as a complementary synth, The Mono/Poly is equipped with four VCOs and can operate as a four-voice paraphonic synth with limited capabilities, or as a monophonic synth using all four oscillators.