Preparation and properties of nylon 66 copolymers with 2,2-dialkyl-1,3-propanediols
β Scribed by Tsuyoshi Kiyotsukuri; Daisuke Miura; Naoto Tsutsumi; Wataru Sakai; Minoru Nagata
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 566 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0032-3861
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π SIMILAR VOLUMES
Copolyamides ofhigh mol.wt were obtained by the anionic copolymerisation of E-caprohtctam with ,)-laurolactam at 180 C. using a sodium caprolactamate-N-phenylcarbamoylcaprolactam initiator activator system. The proportions of co-units in the copol',mers were close to those in the comonomer feeds. Th
Heat capacities of 2,2-dimethyl-1,3-propanediol (CH 3 ) 2 C(CH 2 OH) 2 were measured in the temperature range between T = 13 K and T = 350 K using an adiabatic calorimeter. The compound underwent a first-order phase transition at T = (314.5 Β± 0.1) K. The enthalpy and the entropy of transition were (