EB31,4-Butanediol Reactions speak louder than words
Fabric, coated with tough, flexible 1,4-BUTANEDIOL polyurethane film, sheds water but lets air through. Intermediate...solvent...crosslinker...chain extender...plasticizer GAF's 1,4-BUTANEDIOL acts and reacts in many ways to reward the imagination and ingenuity of the creative chemist. 1,4-BUTANEDIOL is an unusually versatile glycol because, in addition to forming open-chain derivatives through the reactions typical of dihydric primary alcohols, it also yields a variety of cyclic products which have great promise as industrial materials. Polyurethanes prepared from 1,4-BUTANEDIOL polyesters are exceptional in their high tensile strength, tear resistance, hardness, stability, flexibility, and low water absorption. Esterified with suitable monobasic acids, 1,4-BUTANEDIOL yields effective plasticizers for thermoplastic polymers. With certain dibasic acids, it produces plasticizers for PVC (polyvinyl chloride) or vinyl chloride-vinyl ester copolymers that are outstanding because of the resultant low cold crack, low volatility and ease of incorporation. Other 1,4-BUTANEDIOL polyesters offer outstanding potential as fibers, plastics, finishes, and plasticizers. Perhaps you have a processing problem that 1,4-BUTANEDIOL could solve or a product in mind that it could improve. For full technical information, write GAF today.
Table of reactions OH OH I I CHa-CH,-CH,-CHj 1,4-Butanediol
Diesters Polyesters Divinyl ether 1,4-Bis- ,. -1,4-Bis(2-cyano(3-aminoethoxy) butane propoxy)butane
RCOOH
- Pyrrolidines
R(COOH)2
- Polyurethanes
C2H2
k
Tetrahydrofuran *
FeCI 3 + SOCI 2 /
2,3-Dichlorotetrahydrofuran " 4-Chloro-1-butanol Di(4-chlorobutyl) ether 4-Chlorobutyl esters -
Butyrolactone
HN0 3 | ^
Adipic acid Polybutylene glycols -
R(NH2)2
- Dichloroformate
CH 2 = CHCN/
NH3
|j\
Na2S
Succinic acid -H20,-C02
l\\
NaOH
I
1\
C 6 H 6 + AICI 3
l\
ROH + HCI
1
NaCN
H 2 S0 4 + SOCI 2 y-Oxopimelic acid
Cl 2
2-Pyrrolidone y.y'-Thiodibutyric acid y,y'-Oxydibutyric acid y-Phenylbutyric acid y-Chlorobutyric esters y-Cyanobutyric acid a-Chloro-y-butyrolactone
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