Poly(ethy1ene terephthalate) copolymers were prepared by melt polycondensation of dimethyl terephthalate and excess ethylene glycol with 10- 40 mol% (in feed) of poly(ethy1ene glycol) (E) and poly(tetramethy1ene glycol) (B), with molecular weight (MW) of E and B 200-7500 and 1000, respectively. The
Gas-Phase Conformations of Synthetic Polymers: Poly(ethylene glycol), Poly(propylene glycol), and Poly(tetramethylene glycol)
✍ Scribed by Gidden, Jennifer; Wyttenbach, Thomas; Jackson, Anthony T.; Scrivens, James H.; Bowers, Michael T.
- Book ID
- 125953011
- Publisher
- American Chemical Society
- Year
- 2000
- Tongue
- English
- Weight
- 262 KB
- Volume
- 122
- Category
- Article
- ISSN
- 0002-7863
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A comparison is made of the chain conformational distribution of hydroxyterminated poly(propylene glycol) (PPG) and poly(ethylene glycol) (PEG) with their methoxy-terminated derivatives. The significant end-group dependence on the glass transition temperature in PPG was observed by differential scan
## Abstract **Summary:** New polymer gelators consisting of poly(propylene glycol) or poly(ethylene glycol) and L‐lysine‐based low‐molecular‐weight gelators have been developed. These polymer gelators were synthesized according to a simple procedure with high reaction yield, and formed organogels i