Page 45 - Academic Press Encyclopedia of Physical Science and Technology 3rd Polymer

P1: GQT/LBX P2: GQT/MBQ QC: FYD Final Pages
Encyclopedia of Physical Science and Technology EN008C-602 July 25, 2001 20:31

860 Macromolecules, Structure

TABLE I Structures and Selected Thermal Data for Polymers
◦
Polymer Chain unit T m ( C) a T g ( C) b
◦
Cellulose H H
OH
HO (
H n
H
( O O
CH 2 OH
H
Epoxy resin (diglycidyl CH 3
O O
ether of bisphenol A) 43
CH 2 CHCH 2 O C OCH 2 CH CH 2
CH 3
Ionomer resin CH 3
( CH 2 CH 2 n ( ( CH C m (
CO 2 Na
Nylon 6 ( (CH 2 ) 5 CONH n ( 75 (dry)
Nylon 66 ( NH(CH 2 ) 6 NHCO(CH 2 ) 4 CO n ( 265 49
Nylon 11 ( (CH 2 ) 10 CONH n ( 46
Nylon 12 ( (CH 2 ) 11 CONH n ( 37
Phenol-formaldehyde OH
( CH 2 n (

CH 2
Phenoxy resin O
( CH 2 CHCH 2 O C O n (
OH
Polyacrylonitrile ( CH 2 CH ∼105
n (
(two transitions)
C N
Polybutene-1, isotactic ( CH CH 2 n ( 142 −20
(several crystalline forms)
CH 2 CH 3
−4
Polybutadiene ( CH CH 2 n ( 125
1,2-isotactic
CH CH 2
1,2-syndiotactic 154
Cis-1,4 H H 6 −108
C C
( CH 2 CH 2 n (
Trans-1,4 H CH 2 n ( 148 −18
C C
H
( CH 2
Polycarbonate CH 3 O 267 149
C O C O
n
CH 3
Polychloroprene ( CH 2 C CHCH 2 n ( −48
Cl
continues